1. Identity and region

Igbo is a living language of southeastern Nigeria. The language has significant regional diversity and widespread diasporic usage. Community names, regional varieties and standard written Igbo must not be treated as interchangeable speech samples.

Research and teaching annotation. To develop this subject into classroom instruction, identify the original source’s dialect and publication date, quote an attested form only where copyright and permission allow, and compare the phonetic, grammatical or historical interpretation with a second linguistic reference. Distinguish first-hand source data from a researcher’s comparative hypothesis, label uncertainty honestly and avoid extrapolating an unattested paradigm.

2. Genealogical identity

Glottolog identifies Igbo with ISO 639-3 ibo and Glottocode nucl1417. Igbo belongs to the Igboid grouping in Atlantic-Congo, often described within Benue-Congo. Historical relationships and the identification of separate related varieties are matters for comparative research.

Research and teaching annotation. To develop this subject into classroom instruction, identify the original source’s dialect and publication date, quote an attested form only where copyright and permission allow, and compare the phonetic, grammatical or historical interpretation with a second linguistic reference. Distinguish first-hand source data from a researcher’s comparative hypothesis, label uncertainty honestly and avoid extrapolating an unattested paradigm.

3. Varieties and standardization

Standard written Igbo emerged through historical missionary writing, publishing and twentieth-century language planning, drawing on differing regional varieties. A standard written expression is not necessarily the ordinary spoken pronunciation of every Igbo dialect.

Research and teaching annotation. To develop this subject into classroom instruction, identify the original source’s dialect and publication date, quote an attested form only where copyright and permission allow, and compare the phonetic, grammatical or historical interpretation with a second linguistic reference. Distinguish first-hand source data from a researcher’s comparative hypothesis, label uncertainty honestly and avoid extrapolating an unattested paradigm.

4. Latin orthography and digraphs

Igbo is normally written in a Latin-derived orthography with digraphs such as gb, gh, gw, kp, kw, nw, ny, sh and ch in conventions of the standardized alphabet. Orthography and phonetic transcription need to be distinguished, including where tones are marked or left unmarked.

Research and teaching annotation. To develop this subject into classroom instruction, identify the original source’s dialect and publication date, quote an attested form only where copyright and permission allow, and compare the phonetic, grammatical or historical interpretation with a second linguistic reference. Distinguish first-hand source data from a researcher’s comparative hypothesis, label uncertainty honestly and avoid extrapolating an unattested paradigm.

5. Tone and phonology

Igbo has lexical and grammatical tonal contrasts; several reference descriptions also investigate vowel harmony and the relation of vowel sets to word formation. Tone can be essential for interpretation even if practical writing omits explicit tone marking.

Research and teaching annotation. To develop this subject into classroom instruction, identify the original source’s dialect and publication date, quote an attested form only where copyright and permission allow, and compare the phonetic, grammatical or historical interpretation with a second linguistic reference. Distinguish first-hand source data from a researcher’s comparative hypothesis, label uncertainty honestly and avoid extrapolating an unattested paradigm.

6. Nominal structures

Noun phrases, pronominal forms, possessive relations, plurality and compounding require attested examples from named varieties. The language does not allow a safe general assumption that one English singular word is converted into a plural with a universal Igbo suffix.

Research and teaching annotation. To develop this subject into classroom instruction, identify the original source’s dialect and publication date, quote an attested form only where copyright and permission allow, and compare the phonetic, grammatical or historical interpretation with a second linguistic reference. Distinguish first-hand source data from a researcher’s comparative hypothesis, label uncertainty honestly and avoid extrapolating an unattested paradigm.

7. Verbal grammar

Igbo verbal morphology and constructions include grammatical marking of tense, aspect and polarity, as well as serial verb and complement constructions reported in linguistic literature. Morphological segmentation needs a source-verified sentence.

Research and teaching annotation. To develop this subject into classroom instruction, identify the original source’s dialect and publication date, quote an attested form only where copyright and permission allow, and compare the phonetic, grammatical or historical interpretation with a second linguistic reference. Distinguish first-hand source data from a researcher’s comparative hypothesis, label uncertainty honestly and avoid extrapolating an unattested paradigm.

8. Syntax and information structure

Subject–verb–object is a useful descriptive starting point, but focus, question formation, verb extensions and topicalization require real interlinear data. The learner should distinguish underlying grammatical structure from literal English translations.

Research and teaching annotation. To develop this subject into classroom instruction, identify the original source’s dialect and publication date, quote an attested form only where copyright and permission allow, and compare the phonetic, grammatical or historical interpretation with a second linguistic reference. Distinguish first-hand source data from a researcher’s comparative hypothesis, label uncertainty honestly and avoid extrapolating an unattested paradigm.

9. Literature and social context

Igbo has rich oral narrative, proverbs, dramatic and literary writing, religious and secular print, broadcasting and popular media. Published materials reflect different historical stages and registers, and speakers' contributions should be treated with proper consent and attribution.

Research and teaching annotation. To develop this subject into classroom instruction, identify the original source’s dialect and publication date, quote an attested form only where copyright and permission allow, and compare the phonetic, grammatical or historical interpretation with a second linguistic reference. Distinguish first-hand source data from a researcher’s comparative hypothesis, label uncertainty honestly and avoid extrapolating an unattested paradigm.

10. Source-critical review

Emenanjo's Elements of Modern Igbo Grammar (1978) is a substantial reference for grammar study. A short language overview should not misrepresent an indirect summary as a complete reading of the book. The recommended course includes source-based research activities rather than unsourced invented dialogues.

Research and teaching annotation. To develop this subject into classroom instruction, identify the original source’s dialect and publication date, quote an attested form only where copyright and permission allow, and compare the phonetic, grammatical or historical interpretation with a second linguistic reference. Distinguish first-hand source data from a researcher’s comparative hypothesis, label uncertainty honestly and avoid extrapolating an unattested paradigm.

11. Source-verified sample expressions

This edition does not include an invented sample conversation or word list. Original Igbo speech must be attributed to a specified variety and sourced from a published dictionary, descriptive grammar or appropriately consented language speaker before teaching material can claim full linguistic accuracy.

12. Ninety-lesson documentary and research curriculum

The following lesson briefs describe the research objective, material needed, linguistic analysis and accountable student output. They are separate structured learning activities, not ninety fully authored learner chapters or a completed audio/video course.

Module 1: Language identity and documentation — Lessons 1 to 9

Language-specific module objective: Igbo identity, dialect boundaries and source dating. Assemble original-source evidence and contrast it with a second documented view without silently merging neighboring languages or varieties.

Lesson 1: Map current and historical speech communities. Main learning question: what do primary sources specifically establish about Igbo, particularly Igbo identity, dialect boundaries and source dating? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 2: Identify source names and alternate language labels. Main learning question: what do primary sources specifically establish about Igbo, particularly Igbo identity, dialect boundaries and source dating? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 3: Verify ISO 639-3 and Glottocode identifiers. Main learning question: what do primary sources specifically establish about Igbo, particularly Igbo identity, dialect boundaries and source dating? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 4: Place the language in comparative genealogical classification. Main learning question: what do primary sources specifically establish about Igbo, particularly Igbo identity, dialect boundaries and source dating? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 5: Compare two dated regional language records. Main learning question: what do primary sources specifically establish about Igbo, particularly Igbo identity, dialect boundaries and source dating? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 6: Review a source-based history of literacy. Main learning question: what do primary sources specifically establish about Igbo, particularly Igbo identity, dialect boundaries and source dating? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 7: Analyze speaker estimates critically by date. Main learning question: what do primary sources specifically establish about Igbo, particularly Igbo identity, dialect boundaries and source dating? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 8: Separate linguistic identity from nationality. Main learning question: what do primary sources specifically establish about Igbo, particularly Igbo identity, dialect boundaries and source dating? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 9: Write an annotated language identity summary. Main learning question: what do primary sources specifically establish about Igbo, particularly Igbo identity, dialect boundaries and source dating? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Module 2: Orthography and sound — Lessons 10 to 18

Language-specific module objective: standard written Igbo and manuscript history. Assemble original-source evidence and contrast it with a second documented view without silently merging neighboring languages or varieties.

Lesson 10: Chart the standard alphabet from an authoritative source. Main learning question: what do primary sources specifically establish about Igbo, particularly standard written Igbo and manuscript history? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 11: Separate orthography from phonetic transcription. Main learning question: what do primary sources specifically establish about Igbo, particularly standard written Igbo and manuscript history? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 12: Document sourced consonant contrasts. Main learning question: what do primary sources specifically establish about Igbo, particularly standard written Igbo and manuscript history? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 13: Document sourced vowel contrasts. Main learning question: what do primary sources specifically establish about Igbo, particularly standard written Igbo and manuscript history? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 14: Evaluate tone or prosody when documented. Main learning question: what do primary sources specifically establish about Igbo, particularly standard written Igbo and manuscript history? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 15: Examine syllable structure and sound combinations. Main learning question: what do primary sources specifically establish about Igbo, particularly standard written Igbo and manuscript history? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 16: Compare regional writing variants. Main learning question: what do primary sources specifically establish about Igbo, particularly standard written Igbo and manuscript history? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 17: Match an original recording to printed transcription. Main learning question: what do primary sources specifically establish about Igbo, particularly standard written Igbo and manuscript history? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 18: Create a source-graded pronunciation reference. Main learning question: what do primary sources specifically establish about Igbo, particularly standard written Igbo and manuscript history? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Module 3: Lexicography and semantics — Lessons 19 to 27

Language-specific module objective: consonant digraphs, vowel sets and tone. Assemble original-source evidence and contrast it with a second documented view without silently merging neighboring languages or varieties.

Lesson 19: Collect attested words for family relations. Main learning question: what do primary sources specifically establish about Igbo, particularly consonant digraphs, vowel sets and tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 20: Investigate quantity and counting forms. Main learning question: what do primary sources specifically establish about Igbo, particularly consonant digraphs, vowel sets and tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 21: Review documented greeting expressions. Main learning question: what do primary sources specifically establish about Igbo, particularly consonant digraphs, vowel sets and tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 22: Research natural-environment vocabulary. Main learning question: what do primary sources specifically establish about Igbo, particularly consonant digraphs, vowel sets and tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 23: Study place names and spatial vocabulary. Main learning question: what do primary sources specifically establish about Igbo, particularly consonant digraphs, vowel sets and tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 24: Identify temporal expressions in text. Main learning question: what do primary sources specifically establish about Igbo, particularly consonant digraphs, vowel sets and tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 25: Distinguish polysemy from translation ambiguity. Main learning question: what do primary sources specifically establish about Igbo, particularly consonant digraphs, vowel sets and tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 26: Check loanword and inherited-word claims. Main learning question: what do primary sources specifically establish about Igbo, particularly consonant digraphs, vowel sets and tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 27: Compile a ten-entry documented lexicon. Main learning question: what do primary sources specifically establish about Igbo, particularly consonant digraphs, vowel sets and tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Module 4: Nouns and agreement — Lessons 28 to 36

Language-specific module objective: original Igbo wordlists with stated varieties. Assemble original-source evidence and contrast it with a second documented view without silently merging neighboring languages or varieties.

Lesson 28: Identify noun phrases in original text. Main learning question: what do primary sources specifically establish about Igbo, particularly original Igbo wordlists with stated varieties? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 29: Examine nominal class or grouping distinctions. Main learning question: what do primary sources specifically establish about Igbo, particularly original Igbo wordlists with stated varieties? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 30: Analyze singular and plural evidence. Main learning question: what do primary sources specifically establish about Igbo, particularly original Igbo wordlists with stated varieties? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 31: Compare person and pronoun forms. Main learning question: what do primary sources specifically establish about Igbo, particularly original Igbo wordlists with stated varieties? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 32: Study possession in a source sentence. Main learning question: what do primary sources specifically establish about Igbo, particularly original Igbo wordlists with stated varieties? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 33: Find demonstratives in published data. Main learning question: what do primary sources specifically establish about Igbo, particularly original Igbo wordlists with stated varieties? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 34: Analyze adjectival and noun modifiers. Main learning question: what do primary sources specifically establish about Igbo, particularly original Igbo wordlists with stated varieties? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 35: Describe source-verified agreement mechanisms. Main learning question: what do primary sources specifically establish about Igbo, particularly original Igbo wordlists with stated varieties? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 36: Prepare a short interlinear noun analysis. Main learning question: what do primary sources specifically establish about Igbo, particularly original Igbo wordlists with stated varieties? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Module 5: Verbs and clause structure — Lessons 37 to 45

Language-specific module objective: source-confirmed Igbo noun and pronoun phrases. Assemble original-source evidence and contrast it with a second documented view without silently merging neighboring languages or varieties.

Lesson 37: Locate source-verified verb citation forms. Main learning question: what do primary sources specifically establish about Igbo, particularly source-confirmed Igbo noun and pronoun phrases? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 38: Describe agreement or participant marking. Main learning question: what do primary sources specifically establish about Igbo, particularly source-confirmed Igbo noun and pronoun phrases? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 39: Study tense references in complete clauses. Main learning question: what do primary sources specifically establish about Igbo, particularly source-confirmed Igbo noun and pronoun phrases? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 40: Study aspect and event presentation. Main learning question: what do primary sources specifically establish about Igbo, particularly source-confirmed Igbo noun and pronoun phrases? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 41: Investigate negative constructions. Main learning question: what do primary sources specifically establish about Igbo, particularly source-confirmed Igbo noun and pronoun phrases? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 42: Review documented imperative clauses. Main learning question: what do primary sources specifically establish about Igbo, particularly source-confirmed Igbo noun and pronoun phrases? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 43: Examine interrogative sentence formation. Main learning question: what do primary sources specifically establish about Igbo, particularly source-confirmed Igbo noun and pronoun phrases? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 44: Compare clause order and object marking. Main learning question: what do primary sources specifically establish about Igbo, particularly source-confirmed Igbo noun and pronoun phrases? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 45: Produce an interlinear analysis of a recorded sentence. Main learning question: what do primary sources specifically establish about Igbo, particularly source-confirmed Igbo noun and pronoun phrases? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Module 6: Conversational pragmatics — Lessons 46 to 54

Language-specific module objective: verbal aspect, clause structure and grammatical tone. Assemble original-source evidence and contrast it with a second documented view without silently merging neighboring languages or varieties.

Lesson 46: Analyze a sourced greeting in context. Main learning question: what do primary sources specifically establish about Igbo, particularly verbal aspect, clause structure and grammatical tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 47: Interpret a greeting response. Main learning question: what do primary sources specifically establish about Igbo, particularly verbal aspect, clause structure and grammatical tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 48: Examine respectful and familiar address. Main learning question: what do primary sources specifically establish about Igbo, particularly verbal aspect, clause structure and grammatical tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 49: Compare morning and evening expressions. Main learning question: what do primary sources specifically establish about Igbo, particularly verbal aspect, clause structure and grammatical tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 50: Identify requests and polite invitations. Main learning question: what do primary sources specifically establish about Igbo, particularly verbal aspect, clause structure and grammatical tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 51: Locate expressions of thanks and apology. Main learning question: what do primary sources specifically establish about Igbo, particularly verbal aspect, clause structure and grammatical tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 52: Study clarification and conversational repair. Main learning question: what do primary sources specifically establish about Igbo, particularly verbal aspect, clause structure and grammatical tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 53: Discuss community variation in register. Main learning question: what do primary sources specifically establish about Igbo, particularly verbal aspect, clause structure and grammatical tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 54: Annotate one real dialogue or speaking event. Main learning question: what do primary sources specifically establish about Igbo, particularly verbal aspect, clause structure and grammatical tone? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Module 7: Narrative and cultural history — Lessons 55 to 63

Language-specific module objective: questions and social-context conversational evidence. Assemble original-source evidence and contrast it with a second documented view without silently merging neighboring languages or varieties.

Lesson 55: Locate a published short oral narrative. Main learning question: what do primary sources specifically establish about Igbo, particularly questions and social-context conversational evidence? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 56: Identify storytelling and literary genres. Main learning question: what do primary sources specifically establish about Igbo, particularly questions and social-context conversational evidence? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 57: Describe social roles without stereotyping. Main learning question: what do primary sources specifically establish about Igbo, particularly questions and social-context conversational evidence? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 58: Review the history of written literature. Main learning question: what do primary sources specifically establish about Igbo, particularly questions and social-context conversational evidence? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 59: Distinguish original texts from translations. Main learning question: what do primary sources specifically establish about Igbo, particularly questions and social-context conversational evidence? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 60: Examine contemporary songs or media. Main learning question: what do primary sources specifically establish about Igbo, particularly questions and social-context conversational evidence? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 61: Document historical terminology and place names. Main learning question: what do primary sources specifically establish about Igbo, particularly questions and social-context conversational evidence? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 62: Discuss consent and speaker attribution. Main learning question: what do primary sources specifically establish about Igbo, particularly questions and social-context conversational evidence? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 63: Write a culturally contextualized text commentary. Main learning question: what do primary sources specifically establish about Igbo, particularly questions and social-context conversational evidence? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Module 8: Literacy, diversity and contact — Lessons 64 to 72

Language-specific module objective: oral stories, proverbs and modern written literature. Assemble original-source evidence and contrast it with a second documented view without silently merging neighboring languages or varieties.

Lesson 64: Compare education and public-language materials. Main learning question: what do primary sources specifically establish about Igbo, particularly oral stories, proverbs and modern written literature? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 65: Trace orthographic changes over time. Main learning question: what do primary sources specifically establish about Igbo, particularly oral stories, proverbs and modern written literature? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 66: Analyze documented regional varieties. Main learning question: what do primary sources specifically establish about Igbo, particularly oral stories, proverbs and modern written literature? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 67: Review multilingual community practices. Main learning question: what do primary sources specifically establish about Igbo, particularly oral stories, proverbs and modern written literature? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 68: Investigate credible loanword etymologies. Main learning question: what do primary sources specifically establish about Igbo, particularly oral stories, proverbs and modern written literature? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 69: Compare local and diaspora uses. Main learning question: what do primary sources specifically establish about Igbo, particularly oral stories, proverbs and modern written literature? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 70: Assess digital text encoding and typography. Main learning question: what do primary sources specifically establish about Igbo, particularly oral stories, proverbs and modern written literature? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 71: Prepare permission and metadata protocols. Main learning question: what do primary sources specifically establish about Igbo, particularly oral stories, proverbs and modern written literature? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 72: Design a community-sensitive language worksheet. Main learning question: what do primary sources specifically establish about Igbo, particularly oral stories, proverbs and modern written literature? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Module 9: Comparative and corpus methods — Lessons 73 to 81

Language-specific module objective: comparative Igboid and language contact research. Assemble original-source evidence and contrast it with a second documented view without silently merging neighboring languages or varieties.

Lesson 73: Compare a close genealogical relative. Main learning question: what do primary sources specifically establish about Igbo, particularly comparative Igboid and language contact research? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 74: Identify evidence for sound correspondences. Main learning question: what do primary sources specifically establish about Igbo, particularly comparative Igboid and language contact research? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 75: Separate cognacy from borrowing. Main learning question: what do primary sources specifically establish about Igbo, particularly comparative Igboid and language contact research? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 76: Review contrasting classification hypotheses. Main learning question: what do primary sources specifically establish about Igbo, particularly comparative Igboid and language contact research? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 77: Compare noun morphologies from two sources. Main learning question: what do primary sources specifically establish about Igbo, particularly comparative Igboid and language contact research? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 78: Compare clause syntax with interlinear data. Main learning question: what do primary sources specifically establish about Igbo, particularly comparative Igboid and language contact research? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 79: Build a tiny bibliographically sourced corpus. Main learning question: what do primary sources specifically establish about Igbo, particularly comparative Igboid and language contact research? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 80: Describe uncertainty and source limitations. Main learning question: what do primary sources specifically establish about Igbo, particularly comparative Igboid and language contact research? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 81: Write an original critical comparison. Main learning question: what do primary sources specifically establish about Igbo, particularly comparative Igboid and language contact research? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Module 10: Advanced synthesis — Lessons 82 to 90

Language-specific module objective: a sourced Igbo linguistic portfolio. Assemble original-source evidence and contrast it with a second documented view without silently merging neighboring languages or varieties.

Lesson 82: Prepare a validated bibliography. Main learning question: what do primary sources specifically establish about Igbo, particularly a sourced Igbo linguistic portfolio? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 83: Compile an expanded source-graded vocabulary record. Main learning question: what do primary sources specifically establish about Igbo, particularly a sourced Igbo linguistic portfolio? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 84: Write an orthographic evidence summary. Main learning question: what do primary sources specifically establish about Igbo, particularly a sourced Igbo linguistic portfolio? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 85: Produce an annotated phonology commentary. Main learning question: what do primary sources specifically establish about Igbo, particularly a sourced Igbo linguistic portfolio? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 86: Analyze a documented noun paradigm. Main learning question: what do primary sources specifically establish about Igbo, particularly a sourced Igbo linguistic portfolio? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 87: Analyze a documented verb paradigm. Main learning question: what do primary sources specifically establish about Igbo, particularly a sourced Igbo linguistic portfolio? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 88: Interpret an authentic oral or written narrative. Main learning question: what do primary sources specifically establish about Igbo, particularly a sourced Igbo linguistic portfolio? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 89: Complete ethical and factual quality audit. Main learning question: what do primary sources specifically establish about Igbo, particularly a sourced Igbo linguistic portfolio? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

Lesson 90: Submit an original research dossier and final evaluation. Main learning question: what do primary sources specifically establish about Igbo, particularly a sourced Igbo linguistic portfolio? Research activity: identify a locality, documentary variety or editorial standard; select one published grammar, dictionary, field transcription or original educational source and preserve its precise form, meaning and attribution. Compare a relevant independent source and discuss points of agreement or disagreement. Analytical exercise: produce a short English-language explanation of original-language evidence with bibliographic details and an uncertainty note, and write a critical question accompanied by a justified answer. Completion standard: distinguish sourced examples from hypotheses, and do not fabricate target-language word forms for missing evidence.

13. Assessment framework and supplemental resources

Recommended supporting educational materials include script charts, reference recordings with speaker permissions, verified bilingual vocabulary and conversation cards, annotated original texts, dialect-specific mini-grammars, culture and history readings and source-based revision exercises. These are recommended design elements, not a claim that the corresponding audio, video, PDFs or certificates have already been created.

Suggested assessment: primary-source and citation accuracy 25 percent; phonology and writing analysis 15 percent; grammatical analysis of attested examples 25 percent; cultural interpretation and research ethics 15 percent; final independent documentary portfolio 20 percent. Assessment of research work must not be advertised as confirmed speaking proficiency without practical testing.

14. Scholarly references and documentary provenance

1. Glottolog Igbo language record. Consult original author, edition, local variety and referenced primary example before transferring lexical material.
2. Emenanjo (1978), Elements of Modern Igbo Grammar – bibliographic record. Consult original author, edition, local variety and referenced primary example before transferring lexical material.
3. WALS Igbo reference and features. Consult original author, edition, local variety and referenced primary example before transferring lexical material.
4. Glottolog language bibliography and resources. Consult original author, edition, local variety and referenced primary example before transferring lexical material.

Integrity statement: The language identifiers and genealogical location are anchored in published catalogues. Short phrase examples are attributed to the indicated sources where used; this document is an encyclopedic research syllabus, with full speaker-verified ninety-lesson instructional texts still to be developed.