A-level AO weightings: how to read your specification
Match revision depth to where the marks actually sit on each paper
Every A-level subject specification lists assessment objectives (AOs) and often the percentage of marks targeting each AO per paper. Students who ignore this revise evenly across skills the exam barely rewards, while under-practising the skill that carries half the paper.
Official source
Ofqual requires that A-level qualifications align to subject-level conditions and that assessment objectives are published transparently. Your exam board (AQA, Pearson Edexcel, OCR, etc.) publishes AO weightings in the specification for each qualification — always use the document for your exact entry code. Start here for board hubs: https://www.aqa.org.uk — https://qualifications.pearson.com — https://www.ocr.org.uk
Turn weightings into a revision plan
- Open the ‘Assessment objectives’ or ‘Scheme of assessment’ section of your spec
- Note AO splits for Paper 1 vs Paper 2 (they often differ)
- If AO3/AO4 dominate long answers, most practice time should be chained reasoning + evaluation, not flashcard definitions alone
- Before mocks, tally your past paper performance by AO using mark schemes
Examiner reports (published after each series) repeatedly stress application to context and balanced evaluation — weightings tell you how much each AO is worth; reports tell you how students miss them.