Tcf Source Selection

Non-negotiable rule

Identify the exact source before creating Phase 2. Do not generate the main lesson or drill block first and fill in the source afterward.

Source hierarchy by module

VOC

1. ~/Study/books/vocabulaire progressive b2/
2. other vocabulary-oriented TCF books in ~/Study/Francais/tcf
3. adapted material only if the source bank does not cover the need well

SL

1. ~/Study/Francais/tcf/Entrainement TCF - Structure de langue*
2. ~/Study/books/Grammaire Progressive Du Francais Avance.pdf
3. ~/Study/books/Grammaire Essentielle du Francais B2/
4. ~/Study/Francais/tcf/Les-verbes-et-leurs-prepositions.pdf
5. ~/Study/Francais/tcf/conjugaison_30_verbes_indispensables.pdf
6. revisions/grammaire_progressive_avance/

CE

1. ~/Study/Francais/tcf/ABC TCF
2. ~/Study/Francais/tcf/250_activites
3. ~/Study/Francais/tcf/Reussir le TCF
4. ~/Study/Francais/tcf/TCF TV5 NEW
5. other TCF reading sources

CO

1. official or book-based TCF audio with transcript/corrigé
2. ABC TCF audio
3. Reussir le TCF audio
4. other structured TCF listening sources
5. authentic audio only when manageable and clearly worth it

MIX

Choose 2-4 sources max, with one clear source per slice.

Selection criteria

Pick sources that maximize:

• alignment with the chosen module
• reinforcement of current weak points
• theme rotation without useless repetition
• clarity of correction and explainability
• reuse value for later revision

Avoid sources that are:

• too broad for one session
• too technical for the likely gain
• repetitive relative to the last 1-2 relevant sessions
• hard to correct cleanly

Feasibility gate

Before finalizing the source, confirm it is practically usable in the current session:

• text is readable or extractable with reasonable effort
• transcript or corrigé exists when the module benefits strongly from it, especially CO
• OCR or extraction burden is acceptable for the likely learning gain
• the correction path is clear enough that the source will not create avoidable ambiguity

If the source is a scanned PDF or image-heavy page, prefer the local OCR workflow documented in repo guidance.

Anti-repetition rules

Before finalizing the source, compare against recent sessions.

Avoid immediate repetition of:

• the same lexical field in back-to-back VOC sessions unless the first one clearly needs a follow-up
• the same grammar chapter style in SL when another active weakness is higher value
• the same CE/CO theme if recent exposure was already strong and no new angle exists

However, repetition is allowed when it is strategic:

• a weakness relapsed
• a first pass introduced too much material and needs consolidation
• a new source gives a complementary angle on the same theme

Required source logging

Once selected, record:

• exact book or folder
• exact chapter, section, page range, file name, or audio identifier
• why this source is higher value than nearby alternatives
• any extraction or transcript note that materially affects usability

Use this block shape when logging the choice:

• module
• selected source
• exact location
• why selected now
• what was avoided and why
• extraction / transcript note

Good examples:

• Vocabulaire progressif du français avancé - L'environnement, pages 138 à 141
• Entrainement TCF - Structure de langue - Série spéciale 1, pages X-Y
• ABC TCF audio track N with corrigé page M

Module-specific heuristics

VOC

Prefer one coherent lexical field and enough density to build a lesson-first block.

SL

Prefer sources that produce explainable QCM and clean distractor logic.

CE

Prefer texts that naturally support paraphrase and inference questions.

CO

Prefer audio with transcript support when possible, especially for precise correction.

MIX

Favor source combinations that share a theme or weakness thread.

Pitfalls

Avoid:

• source labels that are too vague
• choosing a source after the exercise is already written
• selecting a source only because it is nearby, not because it is high value
• repeating recent themes mechanically
• using authentic content that is harder to correct than it is useful

Success criteria

A strong source selection should produce:

• one clearly logged source per main block
• good fit between source, module, and current weakness data
• less theme redundancy across sessions
• easier, more grounded Phase 2 generation