IGCSE Chemistry 0620 Past-Paper Checklist (Singapore) - v1

1) Before each paper
- Review equations, definitions, and key trends.
- Set strict timing and no-notes conditions.
- Write your top 3 error traps before starting.

2) During paper
- Balance equations before calculations.
- Keep state symbols and units consistent.
- Use clear step-by-step logic for explanation questions.

3) Marking and error tagging
- Mark strictly with official mark scheme.
- Tag errors: concept, equation setup, data interpretation, language, careless.
- Add one correction rule for each recurring pattern.

4) Reattempt loop
- Reattempt wrong questions from memory first.
- Build a personal weak-topic drill list.
- Re-test those weak topics in the next paper cycle.

5) Weekly dashboard
- Timed papers completed.
- Score trend over last 3 papers.
- Top recurring error categories.

Use this checklist weekly until the exam period.