01 
Look inside History · GCSE · AQA £3.99
AQA 8145. Two papers, two hours each, 84 marks each, four sections of 40 marks — and AQA is the only one of the three that spreads interpretations across both papers, 10% on Paper 1 and 5% on Paper 2. That means no paper can be taught without source and interpretation work, which is a different curriculum problem from the one the other two boards set.
- AO1 Knowledge
- AO2 Explanation
- AO3 Sources
- AO4 Interpretations
AQA GCSE History (8145) specification, with the assessment objective weighting table reconciled against it · 31 pages, 24 sections · For teachers, heads of department and SLT — not a student revision guide
02 
Look inside History · GCSE · Pearson Edexcel £3.99
Pearson Edexcel 1HI0. Three papers of three different lengths and weights — 30%, 40% and 30% — and every mark for interpretations is on Paper 3, with none anywhere else. Paper 2 is the mirror image: 40% of the qualification with no AO3 and no AO4 at all. Two papers, two completely different demands, and a department teaching them the same way is preparing for neither.
- AO1 Knowledge
- AO2 Explanation
- AO3 Sources
- AO4 Interpretations
Pearson Edexcel GCSE (9–1) History (1HI0) specification, with the assessment objective weighting table reconciled against it · 31 pages, 24 sections · For teachers, heads of department and SLT — not a student revision guide
03 
Look inside History · GCSE · OCR £3.99
Cambridge OCR History A (Explaining the Modern World), J410 — the board runs two GCSE histories and this edition names which. Three component groups at 50%, 25% and 25%, with every interpretation mark inside Group 1, which is also half the qualification. The thematic study carries no AO3 and no AO4 at all: a quarter of the grade on knowledge and explanation alone.
- AO1 Knowledge
- AO2 Explanation
- AO3 Sources
- AO4 Interpretations
Cambridge OCR GCSE (9–1) History A (Explaining the Modern World), J410, with the assessment objective weighting table reconciled against it · 31 pages, 24 sections · For teachers, heads of department and SLT — not a student revision guide