TECHNICAL METHODOLOGY & VERIFICATION SPECIFICATION
MyFrenchBD: Mathematical Model, Units & Reproducible Benchmarks
Role & Domain Intent: French practice in English/Bangla (Six A1–B1 sample lessons; not a full proficiency course or certification.)
1. GOVERNING FORMULATION
Equations, Variables & Dimensional Rules
Six A1–B1 sample lessons, practice activities and a local learning passport.
Lesson Completion Progress = Σ_{i=1..6} Completed_Lesson_i / 6; Spaced Recall Score = Correct Prompts / Total Prompts in Lesson Set
Declared Units: 6 structured sample lessons spanning introductory A1–B1 communicative patterns; local learning passport stored in browser JSON.
2. REPRODUCIBLE WORKED EXAMPLE
Step-by-Step Numerical Verification
Sample Lesson Contrast (A1 Present vs. Near Future — 'aller + infinitive'): Compares French sentence structure ('Je vais étudier ce soir') with English ('I am going to study tonight') and Bangla ('আমি আজ রাতে পড়তে যাচ্ছি'), followed by an interactive fill-in-the-blank check and local passport checkpoint.
| Lesson Band | Focus Area | Trilingual Bridge | Scope Boundary |
|---|---|---|---|
| Lessons 1–2 (A1) | Greetings, Articles, Present Verbs | Français ↔ English ↔ বাংলা | Sample lessons only (not full CEFR) |
| Lessons 3–4 (A2) | Past (Passé Composé) & Daily Routines | Français ↔ English ↔ বাংলা | No DELF/TCF exam calibration |
| Lessons 5–6 (B1 intro) | Connectors & Opinion Framing | Français ↔ English ↔ বাংলা | No visa or immigration advice |
3. DATA PROVENANCE & OPERATIONAL BOUNDARIES
Validation Status, Scope Exclusions & Disclaimers
- Data Status: Synthetic / precomputed browser demonstration fixtures generated deterministically from the project engine.
- Operational Limitation: Not a full CEFR curriculum, calibrated assessment or visa-advice service.
- Client-Side Execution: All interactive views, filters, and JSON/CSV exports execute locally in the user's browser with zero external API calls, zero telemetry, and no server-side persistence.
- Author & Principal Investigator: Mohammad Rezwan Khan, PhD (Aalborg University · BESS QA/QC & Power Systems Specialist).