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NotesHistoryTopic 3.3
Unit 3 · Paper 1 · The move to global war · Topic 3.3

IB History — Paper 1 source skills (Move to global war)

Topic 3.3 of IB History covers Paper 1 source skills (Move to global war), which is part of Unit 3: Paper 1 · The move to global war. Students explore key concepts including Paper 1 source skills (Move to global war). A strong understanding of paper 1 source skills (move to global war) is essential for IB History exams and builds the foundation for connected topics across the syllabus.

Exam technique guidePractice questions

Key concepts in Paper 1 source skills (Move to global war)

Key Idea: Paper 1 is not a knowledge test. You get four sources on the aggression of the 1930s, four questions with fixed formats, and 60 minutes to answer them. Three of the four questions never need facts from outside the sources. The whole paper rewards reading closely, judging sources carefully, and comparing them sharply — then adding your own history only at the very end.

The two case studies you might face

Asia — Japanese expansion 1931–1941: **1931 Mukden Incident** — a staged explosion Japan used to seize Manchuria. Japan quits the {{League of Nations|the post-WWI body meant to keep global peace}} in 1933 after the Lytton Report condemned the invasion. **1937** — full invasion of China begins after the Marco Polo Bridge Incident. **1941** — Japan attacks Pearl Harbor, making a Pacific war inevitable. Key theme: manufactured pretexts + expansion thinly disguised as regional order.

Europe — German & Italian expansion 1933–1940: **1933** — Hitler becomes chancellor, begins secret rearmament. **1936** — troops enter the demilitarised Rhineland; Rome-Berlin Axis formed. **1938** — {{Anschluss|the union of Germany and Austria, against the Treaty of Versailles}} and the Munich Agreement hand the Sudetenland to Hitler. **March 1939** — Hitler breaks Munich promise and seizes all of Czechoslovakia. Key theme: {{appeasement|giving in to an aggressor's demands to avoid war}} letting salami-slice expansion go unchecked.

The four questions — your fixed game plan

  1. Q1(a) — Comprehension [3 marks] — Starts 'What, according to Source X, were…'. Pull out three clearly separate points the source actually states. Stay strictly inside the source — no outside knowledge. Earn each mark with a distinct, clearly worded point.
  2. Q1(b) — Message [2 marks] — Starts 'What does Source X suggest about…'. Identify the overall message — what the source wants you to think or feel — then back it with one specific detail from the source. Often a cartoon, map, or photograph.
  3. Q2 — Value and limitations [4 marks] — Starts 'Analyse the value and limitations of Source X…with reference to its origin, purpose and content'. Apply {{OPVL|Origin, Purpose, Value, Limitations — a four-step framework for judging sources as evidence}}. Give one value AND one limitation, each tied to a real feature. Frame it as: 'BECAUSE it was written by… FOR the purpose of…, it is valuable for… BUT limited because…'
  4. Q3 — Compare and contrast [6 marks] — Starts 'Compare and contrast what Sources X and Y reveal about…'. Give linked similarities AND differences — write sentences that name both sources at once ('Both A and C agree that…; however, where A argues…, C instead suggests…'). Never write two separate source summaries that ignore each other.
  5. Q4 — Judgement [9 marks] — Starts 'Using the sources and your own knowledge, evaluate the view that…'. This is the only question rewarding your history knowledge. Write a mini-essay: both sides using the sources as evidence (cite by letter), weave in your own facts, judge source reliability, then end with an explicit verdict. Never sit on the fence.

3-2-4-6-9. That's your mark breakdown, top to bottom. One minute per mark.

QuestionMarksCommand wordOutside knowledge needed?One-word method
Q1(a)3What, according to…NoThree points
Q1(b)2What does X suggest…NoMessage
Q24Analyse value and limitationsNoOPVL
Q36Compare and contrastNoLinked contrast
Q49Using sources and own knowledge…Yes — essentialBoth sides + verdict

Mastering OPVL — the Q2 model

Origin — who, what, when Read the provenance line and identify the author, type of source, and date. This is free information — always use it. An army commander writing in 1931 days after Mukden has very different context from a neutral historian writing sixty years later.

Purpose — why it was made Ask: who was this source made FOR, and what did the maker want them to think or do? A Japanese army communiqué justifying an invasion has the purpose of justifying — that shapes every word it contains and every word it leaves out.

Value — what a historian gains Name something a historian studying this specific topic CAN learn from the source. Often the value of a biased source is precisely its bias — it shows what an aggressor wanted the world to believe, which IS historically important.

Limitation — what it cannot show Name something the source CANNOT reliably tell us. A staged pretext (like Mukden) hides the real planning. A dictator's speech exaggerates strength. A defensive government statement downplays concessions. Always link the limitation to the specific topic named in the question.

Bias does NOT make a source useless. It limits its value as a factual record but makes it valuable as evidence of attitudes — of what Japan or Germany wanted the world to believe, or of how British newspapers sold appeasement to the public. The top-band move is to say: 'Its bias limits it on facts but makes it valuable for…'

Model answer plan — OPVL on a Kwantung Army statement

IB-style questionAnalyse value and limitations[4 marks]

With reference to its origin, purpose and content, analyse the value and limitations of a Kwantung Army statement issued in September 1931 — claiming Chinese soldiers attacked the railway at Mukden and that Japanese troops acted purely in self-defence — for a historian studying Japan's seizure of Manchuria.

🔒 Model answer plan

See the mark-by-mark plan — for / against / judgement, with marking guidance — in study mode.

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Model answer plan — the 9-mark Q4 judgement

IB-style questionEvaluate the view[9 marks]

Using the sources and your own knowledge, evaluate the view that Japanese aggression in Asia between 1931 and 1937 was driven primarily by military ambition rather than economic need. (Assume a booklet with Sources A–D including a Kwantung Army communiqué, a League of Nations Lytton Report excerpt, a Japanese government speech, and a modern historian's analysis.)

🔒 Model answer plan

See the mark-by-mark plan — for / against / judgement, with marking guidance — in study mode.

Unlock free for 7 days →

Quick-fire facts for Q4 own-knowledge moments

  • 1931 — Mukden Incident (staged); Japan seizes Manchuria; establishes puppet state {{Manchukuo|the Japanese-controlled state set up in Manchuria from 1932}}
  • 1933 — Japan and Germany both quit the League of Nations
  • 1935 — Germany announces conscription and the Luftwaffe (air force), breaking the Treaty of Versailles
  • 1935–36 — Italy invades {{Abyssinia|modern-day Ethiopia}} — League sanctions fail; League credibility collapses
  • March 1936 — Germany remilitarises the Rhineland; France and Britain do nothing
  • October 1936 — Rome-Berlin Axis signed; Germany and Italy align
  • July 1937 — Marco Polo Bridge Incident; Japan launches full war against China
  • March 1938 — Anschluss: Germany absorbs Austria
  • September 1938 — Munich Agreement: Britain and France hand Hitler the Sudetenland to 'secure peace'
  • March 1939 — Hitler breaks Munich promise; seizes rest of Czechoslovakia
  • December 1941 — Japan attacks Pearl Harbor; USA enters the war
  • Key figures (Asia): Emperor Hirohito (symbolic), General Tojo (militarist PM by 1941), Kwantung Army officers who staged Mukden
  • Key figures (Europe): Hitler (Germany), Mussolini (Italy), Chamberlain (Britain — appeasement), Daladier (France — Munich co-signatory)
  • Key documents: Treaty of Versailles (1919), Kellogg-Briand Pact (1928 — outlawed war), Lytton Report (1932 — condemned Japan), Munich Agreement (September 1938)
Q1(a): Write three clearly numbered or separated points — help the examiner tick them. Q2: Never say a source is 'biased, so it's useless.' Bias is itself evidence of attitudes. Always give one value AND one limitation. Q3: Force your sentences to name both sources in the same breath. 'Both A and D agree that…; however, A attributes this to…, whereas D argues…' Q4: Open with a one-sentence position, argue both sides with source letters AND own facts the sources miss, judge reliability of at least one source, close with a decisive verdict. A fence-sitter never reaches the top band.

What you'll learn in Topic 3.3

  • 3.3.1 Paper 1 source skills (Move to global war)
Suggested study order: Read the notes for each sub-topic below → test yourself with flashcards → attempt practice questions → review exam technique.

Study resources — 3.3 Paper 1 source skills (Move to global war)

3.3.1

Paper 1 source skills (Move to global war)

Notes

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Topic 3.3 Paper 1 source skills (Move to global war) forms a core part of Unit 3: Paper 1 · The move to global war in IB History. Mastering these concepts will strengthen your understanding of connected topics across the syllabus and prepare you for exam questions that require analysis, evaluation, and real-world application.

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