N — Nature
What type of source is it?
Speech, diary entry, government memo, photograph, propaganda poster, newspaper article, cartoon, eyewitness testimony? The type itself shapes how reliable and useful the source is for an enquiry. Pearson Edexcel International GCSE History 4HI0/4HI1
📜 Edexcel IGCSE History Reference Sheet 2026
Every core analytical framework for Edexcel IGCSE History — NOP source evaluation, causation and consequence chains, significance analysis, PEEL essay structure, and mark-by-mark question technique.
NOP Source Framework Causation & Consequence Significance (5Rs) PEEL Essays
Our reference sheets are free to download — save this one as PDF for offline revision.
Aligned with the latest 2026 syllabus and board specifications. This sheet is prepared to match your exam board’s official specifications for the 2026 exam series.
All the Core Edexcel IGCSE History Techniques in One Reference Sheet
Edexcel IGCSE History rewards students who can evaluate sources analytically, structure clear historical arguments, and judge significance with reasoned criteria. This reference sheet gives you the frameworks, vocabulary, and exam technique for every question type — from 4-mark inference questions to 16-mark extended essays.
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NOP source evaluation — Nature, Origin, Purpose for utility & reliability
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Causation & consequence — long-term, short-term, intended, unintended
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Significance frameworks — CAMPS and the 5Rs
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PEEL essay structure and question-by-question mark scheme guidance
Source Analysis Framework — NOP
Apply Nature, Origin, Purpose to every source — Edexcel rewards structured, analytical evaluation, not summary.
O — Origin
Who created it, when, and where?
Author/creator, their position and perspective, date of creation (contemporary vs retrospective), country/regime of origin. Consider what the author would and would not have known at that point. P — Purpose
Why was it created and for whom?
To inform, persuade, justify, propagandise, record, warn, inspire? A source produced for propaganda may be unreliable as a record of events but very useful as evidence of intent or how a regime wished to be seen. Utility & Reliability Judgement
Always tie evaluation back to the specific enquiry stated in the question.
Useful for...
Content reveals... + provenance suits the enquiry because... + supported by own knowledge of... Limited because...
Bias of author + selective omissions + cannot be cross-referenced with... A biased source is not useless — it is useful evidence of attitudes, motives, or propaganda techniques.
Causation Analysis
Explain WHY events happened — distinguish underlying causes from immediate triggers.
Long-Term vs Short-Term Causes
The strongest answers separate underlying conditions from immediate triggers.
Long-term causes
Underlying structural conditions building over years/decades — political, economic, social, ideological tensions Short-term causes
Triggering events that turned underlying tensions into action (often in the months before) Trigger event
The specific spark — usually visible to contemporaries as 'the moment things changed' Causal Chains
Show how one cause led to another in a logical sequence.
X created the conditions in which Y became possible by... → this in turn meant that Z... → which finally produced [outcome] Avoid simply listing causes — link them. Examiners reward 'because' and 'this led to' constructions.
Weighing Causes
When the question asks which cause was most important, you must judge.
Identify the most important cause early → explain why it outweighs the others (longer-lasting? necessary precondition? without it, the event could not have happened?) → support with specific evidence Consequence Analysis
Edexcel asks how events 'changed' or 'affected' situations — separate timescales and types of consequence.
Timescales of Consequence
Short-term
Immediate effects in days/weeks/months Medium-term
Effects that emerged over the following years Long-term
Effects visible decades later or that shaped the wider period Intended vs Unintended Consequences
What did decision-makers want — and what actually happened?
Intended
The outcomes leaders or actors deliberately set out to achieve Unintended
Knock-on effects nobody planned for — often the most historically significant Strong answers explore both: 'although the intention was X, the actual consequence was Y, because...'
Types of Consequence
Political (regime change, new laws, shifting power) | Economic (trade, employment, inflation, industrial output) | Social (class, gender, daily life, migration) | Cultural/ideological (beliefs, propaganda, identity) | International (alliances, war, diplomacy) Significance Frameworks
Significance is a judgement — explain WHY something mattered, don't just assert that it did.
The 5Rs of Significance
A flexible checklist for judging the significance of a person, event, or development.
Remembered
Is it commemorated, taught, debated today? Resonant
Did it affect many people, deeply, at the time? Resulted in change
Did it produce real, lasting change in politics, society, or ideas? Revealing
Does it reveal something important about the wider period? Remarkable
Was it noted by contemporaries as exceptional or surprising? CAMPS Framework
Alternative checklist commonly used at IGCSE level.
Controversial at the time | Allied to major change | Made a difference | People's lives affected | Significant over time Pick whichever framework you prefer — and apply it explicitly. Do not simply describe; judge.
Constructing a Significance Argument
State your judgement (highly/partly/limited significance) → apply 2–3 criteria from the framework → support each with specific evidence → conclude with overall verdict Essay Structure — PEEL & Beyond
Every IGCSE History extended answer needs structured paragraphs, not chronological narrative.
PEEL Paragraph Formula
P — Point
State the argument of the paragraph in a clear topic sentence E — Evidence
Provide precise, specific historical detail (dates, names, statistics, events) E — Explanation
Explain HOW the evidence supports the point — link the detail to the argument L — Link
Tie the paragraph back to the question and your overall thesis Essay Architecture
Four to six PEEL paragraphs framed by a strong introduction and conclusion.
Introduction
Define key terms → state your thesis (overall judgement) → signpost main lines of argument Body paragraphs
3–5 PEEL paragraphs covering different factors, perspectives, or causes — strongest factor usually first or last Counterargument
Engage with the opposing view → explain why your judgement still stands Conclusion
Weigh up factors → restate judgement → no new evidence Historical Argument Vocabulary
Introducing
A compelling case can be made that... | Central to understanding X is... | The most persuasive explanation is... Developing
This is corroborated by... | Crucially... | This is particularly significant because... Qualifying
However, this must be qualified by... | While X had some validity, nevertheless... | Despite this... Concluding
On balance... | Ultimately... | Taking all factors into account... Edexcel IGCSE History Question Types — 4/6/9/16 Marks
Each mark band needs a different approach — give examiners exactly what the mark scheme is looking for.
4-Mark Inference / Brief Knowledge Question
Quick recall or 'what does this source suggest about...' style.
Make 2 supported inferences → each one stated clearly + supported with a specific quote/detail from the source or own knowledge Time guide: ~5 minutes. Don't over-write — get in, score, get out.
6-Mark Source Utility / Causation Question
Evaluate a source's usefulness, or explain the causes of an event briefly.
For source utility
Apply NOP → 1 strength of utility (with example from source/own knowledge) + 1 limitation (provenance, omissions) → mini-judgement For causation
2 developed reasons, each backed by precise evidence Time guide: ~8 minutes.
9-Mark Explanation Question
Typically: 'Explain why...' — needs developed reasoning across multiple causes.
3 PEEL paragraphs, each covering a distinct cause/factor → each with specific evidence and clear explanation of HOW it caused the outcome → no formal conclusion required but link each paragraph to the question Time guide: ~12–14 minutes.
16-Mark Extended Essay
Highest-tariff question — typically 'How far do you agree...' or 'To what extent...'
Introduction with thesis → 3–4 PEEL paragraphs (mix of supporting AND challenging the statement) → conclusion that weighs up and restates judgement → SPaG marks usually included — proofread! Time guide: ~25–30 minutes. Plan for 3–5 minutes before writing.
Paper 1 & Paper 2 Exam Technique
Edexcel splits content into a depth study and a breadth/investigation paper — adjust your approach.
Paper 1 — Depth Study
Tests detailed knowledge of a defined period or theme.
Show breadth and depth: precise dates, named individuals, specific events, statistics → use chronology accurately → focus on causation, consequence, and key turning points within the period Paper 2 — Breadth Study & Historical Investigation
Tests change over a longer period and source evaluation skills.
Breadth study
Trace continuity and change across decades/centuries → identify turning points → compare different periods Investigation/source paper
Apply NOP rigorously → cross-reference sources → use own knowledge to evaluate utility Time Management
Mark-per-minute rule: roughly 1.5 minutes per mark, leaving time at the end to check. Always answer ALL questions — partial credit beats unanswered questions. How to Use This Reference Sheet
Boost your Cambridge exam confidence with these proven study strategies from our tutoring experts.
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Build a Topic Timeline
For each unit, create a one-page timeline of 15–20 key dates with one-line descriptions. This anchors your evidence bank and prevents chronological errors in essays.
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Practice NOP on Every Source
Don't summarise sources — evaluate them. Drill the NOP framework on every past-paper source until applying Nature, Origin, Purpose becomes automatic.
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Plan Before You Write
For 9 and 16-mark questions, spend 3–5 minutes planning. List your factors, choose your strongest evidence, and decide your judgement BEFORE you start writing.
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Match the Mark Tariff
Don't write a 16-mark answer for a 4-mark question, or vice versa. Match depth and length to the marks available — examiners reward precision over volume.
Reference Sheet FAQ
Quick answers about this free PDF and how to use it for exam revision and active recall.
Is the Edexcel IGCSE History Reference Sheet 2026 free to download as a PDF?
Yes. This Tutopiya formula sheet is free to use and you can download it as a PDF from this page for offline revision. There is no payment or account required for the PDF download.
What History topics and equations does this formula sheet cover?
This page groups key History formulas in one place for revision. Master Pearson Edexcel International GCSE History (4HI0/4HI1) with this 2026 reference sheet. Covers NOP source evaluation, causation and consequence frameworks, significance analysis, PEEL essay structure, and 4/6/9/… Always cross-check with your official syllabus and past papers for your exam session.
Can I use this instead of the official exam formula booklet in the exam?
No. In the exam you must follow only what your exam board allows in the hall—usually the official formula booklet or data sheet where provided. This page is a revision and teaching aid, not a replacement for board-issued materials.
Who is this formula sheet for (Secondary)?
It is written for students preparing for assessments at Secondary in History, including classroom revision, homework support, and independent study. Teachers and tutors can also share it as a quick reference.
How should I revise with this formula sheet?
Work through past paper questions, quote the correct formula before substituting values, and check units and notation every time. Pair this sheet with timed practice and mark schemes so you see how examiners expect working to be set out.
Where can I get more help with History revision?
Explore Tutopiya’s study tools, past paper finder, and revision checklists linked from our tools hub, or book a trial lesson with a subject specialist for personalised support alongside this formula reference.
Need Help with Edexcel IGCSE History?
Work through source analysis, extended essays, and exam-style questions with an experienced Edexcel IGCSE History tutor. We focus on NOP technique, PEEL essay structure, and the precise evidence needed for top-band marks.
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This reference sheet aligns with Pearson Edexcel International GCSE History (4HI0/4HI1) syllabus content.
Always support historical arguments with specific, precise evidence and apply analytical frameworks (NOP, PEEL, 5Rs) explicitly.