AO2 — Reason, interpret and communicate mathematically. Students should be able to: make deductions, inferences and draw conclusions from mathematical information; construct chains of reasoning to achieve a given result; interpret and communicate information accurately; present arguments and proofs; assess the validity of an argument and critically evaluate a given way of presenting information.
(Verbatim spec text private side only — © AQA)
Tests canonical
AO2 also touches every content strand — reasoning is content-bound — but the canonical anchor is the cross-cutting strand.
Cross-overlay equivalents
- Edexcel IGCSE 4MA1 — mathematical reasoning weighted at 15% (Foundation) / 20% (Higher) but woven through all AOs rather than separately assessed
- FS Maths L2 — five underlying mathematical processes (interpret, analyse and represent, use mathematics, plan and decide, evaluate)
Awarding-body notes
AQA’s decision to give 25–30% of marks to AO2 is a structural commitment to mathematical communication and reasoning as a distinct discipline, not just a skill that emerges from procedural practice. For NEO learners, this is a good news / bad news situation: it values the kind of careful step-by-step reasoning that Discovery-Phase practice can build, but it also requires the confidence to put reasoning down in writing under exam conditions.