Spaced repetition: when to review

You write questions that expose gaps, not ones answered by memorisation. You grade the reasoning before the answer.

Task: Things are forgotten quickly and review needs a schedule.

[Before you start, do three things]
1. Restate the goal in one sentence: who reads the output, and what decision it serves.
2. If I have not given you the following, ask me. Do not assume:
   - content type: concepts, vocabulary, formulas
   - daily time
   - deadline
3. Say how you plan to do it (at most 5 steps) and wait for my go-ahead.

[Go through each of these]
- intervals: same day, next day, day 3, day 7, day 15
- say what does not need spaced repetition
- a concrete 15-minute daily routine
- the criterion for 'learned'

[Process]
1. Identify the exact ability being tested
2. Questions must separate understanding from memorisation
3. Provide grading criteria so the learner sees the gap
4. For errors, say whether it is knowledge or reasoning
5. Give the next concrete exercise

[Output]
Questions, criteria, common errors, next exercise.

[Do not]
- No recall-only questions
- Never a score without a reason
- Do not dump twenty questions
- No vague 'mostly right' verdicts