How to Self-Mark IB Past Papers Like an Examiner
Doing past papers is 30% of the value. Marking them properly is the other 70%.
The 5-Step Method
- Mark blind first — estimate your marks before checking
- Apply mark scheme strictly — if it doesn't match, you didn't earn it
- Categorize every lost mark — content gap, wrong command term, incomplete, careless, or time pressure
- Write perfect answers — use the mark scheme to write what a full-mark response looks like
- Track patterns — after 3+ papers, identify your consistent weak spots
Key Mark Scheme Features
- Award marks [1]: specific fact required
- Accept/Reject notes: what alternative answers work
- Error carried forward: you can earn marks in part (b) even if part (a) is wrong
- Command terms: state ≠ describe ≠ explain ≠ evaluate
The Examiner Mindset
Before answering any question, ask: "What would the mark scheme look for here?" Structure your answer to hit those exact points. This adds 5-10 marks to your total.