Mark scheme guide
How to use a mark scheme without giving false marks
A mark scheme is a professional marking document, not merely an answer list. Read its notation and question-specific instructions before awarding credit.
Keep the script visible
Compare each marking point with evidence on the page. Do not let the expected answer cause you to read a faint or ambiguous symbol as something it may not be.
Respect dependencies
- Check whether an accuracy mark depends on a method mark.
- Apply follow-through only where permitted.
- Look for alternative methods and equivalent forms.
- Read notes on units, rounding and answer-only responses.
Escalate uncertainty
If the scheme does not clearly cover a valid-looking method, record it for qualified review instead of forcing it into the closest listed route.
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