Key Idea: Paper 1 is a source paper: you get a small booklet of sources on one narrow topic and answer four questions about them. You are not marked on how much history you know, but on how well you can read, judge and use the sources. Master two skills — OPVL (judging one source) and cross-referencing (comparing two) — and you can win marks in every single Paper 1 you ever sit.
🔍 4.3.1 — Reading, judging and using sources
Think of yourself as a detective, not a storyteller. Each source is a clue: your job is to work out what it shows, how far you can trust it, and how the clues fit together.
The first skill is OPVL — a checklist for weighing up a single source. Origin asks who made it, what it is and when. Purpose asks why it was made and who for. Value says what the source is good for, and Limitation says what it cannot tell you — and both must be tied back to the origin or purpose, never just "it's biased".
The second skill is cross-referencing — comparing two sources. You quote a point from Source A, then show how Source B either supports it or challenges it. Top answers explain why two sources differ, usually by pointing to their different origins or purposes (a public newspaper wants to boost morale; a private diary can be brutally honest).
- OPVL = Origin, Purpose, Value, Limitation — your checklist for judging any one source.
- Value and Limitation must be linked to Origin, Purpose or content — never write "this is biased" with no reason.
- Cross-referencing = quote Source A, then show Source B agreeing or disagreeing — give both directions where you can.
- A private source (letter, diary) is valued for honesty; a public source (newspaper, poster) is limited because it may persuade rather than tell the whole truth.
- Explain, never just describe: retelling what a source says earns nothing on its own.
🗂️ The four question types
Paper 1 always has the same four questions, so once you spot the type you know exactly what to do. Split your time by the marks — roughly a minute per mark — and plan the big 9-marker properly, because it's worth almost as much as the other three combined.
- Comprehension (about 3 marks) — simply pick out points a source makes, plus the message of a cartoon or map.
- OPVL / value [4] — give one value and one limitation of a single source, each tied to its origin, purpose or content.
- Compare and contrast [6] — cross-reference two sources, running linked points across both to show how they agree and disagree.
- Judgement [9] — use all the sources plus your own knowledge to reach a clear, supported verdict.
✍️ Exam-ready answers
Source A is a private letter written in 1936 by a government finance official to a colleague, complaining that army spending is 'draining the treasury and cannot go on'. With reference to its origin, purpose and content, analyse the value and limitation of Source A for a historian studying government policy in this period. [4 marks]
🔒 Model answer plan
See the mark-by-mark plan — for / against / judgement, with marking guidance — in study mode.
Source B (a 1937 newspaper report) praises the government's foreign policy as 'firm and popular', while Source C (a private diary from the same year) calls it 'reckless and driven by the army'. Compare and contrast what Sources B and C reveal about attitudes to the government's foreign policy. [6 marks]
🔒 Model answer plan
See the mark-by-mark plan — for / against / judgement, with marking guidance — in study mode.
🎯 One-glance recall
Paper 1 tests skills, not memory You are marked on how well you read, judge and use a booklet of sources — not on facts you've memorised. The same skills reappear in every exam, which is why this one topic is worth so many marks across your whole course.
OPVL judges a single source Origin (who/what/when), Purpose (why/for whom), Value (what it's good for) and Limitation (what it can't show). Value and Limitation must always be tied to origin, purpose or content — never just 'it's biased'.
Cross-referencing compares two sources Quote a point from Source A, then show Source B supporting or challenging it. Give both agreements and disagreements, and explain why sources differ using their origins and purposes.
Four questions, one plan Comprehension (~3): pick out points. OPVL [4]: one value + one limitation. Compare [6]: cross-reference two sources. Judgement [9]: all sources plus your own knowledge, ending in a clear verdict. Spend about a minute per mark.