Explain-back

“Explain it back” (Feynman) is an interactive, synchronous loop where a student explains a concept in their own words and gets meaning-based grading. Requires the study app.

1. Create questions for a subject/topic — returns questions with id and prompt.
2. Optionally fetch the question audio (Australian-accent TTS) to play to the student.
3. Submit the answer — a recorded audio file (we transcribe it) or a typed transcript — and receive the grade (band, score, point-by-point coverage, strengths, model answer).

Endpoints

• Create questions — POST /api/v1/study/explain_backs
• Get question audio — GET /api/v1/study/explain_backs/:id/audio
• Submit a response — POST /api/v1/study/explain_backs/:id/responses