Pearson Edexcel International A Level Geography XGE11
Four-unit IAL framework — Global Challenges, Geographical Investigations, Contested Planet, and Researching Geography — plus statistical formulas, geographical skills, and the Independent Investigation coursework component.
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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.
Pearson Edexcel International A Level Geography (XGE11/YGE11) blends physical and human content with quantitative skills, fieldwork techniques, and synoptic decision-making across four units. This formula sheet brings together the key models, the statistical formulas, and the structures of all four papers plus the Independent Investigation so you can revise efficiently and apply techniques accurately.
Unit 1 (WGE01) Global Challenges — climate, population, resources
Unit 2 (WGE02) Geographical Investigations — fieldwork & techniques
Unit 3 (WGE03) Contested Planet — superpowers, energy, water, biodiversity
Unit 4 (WGE04) Researching Geography — synoptic + Independent Investigation
AS-level overview of physical and human global challenges.
Hazard scales, response models, and risk equations.
Hazard equation
Risk = Hazard × Vulnerability ÷ Capacity to cope Mercalli scale
I–XII intensity scale based on observed effects Richter scale
Logarithmic magnitude scale (each unit = 10× ground motion, ~32× energy) Park's response model
Quality of life curve through Relief → Rehabilitation → Reconstruction Plate boundaries
Convergent (destructive), divergent (constructive), conservative (transform) Causes, feedbacks, and international response.
Positive feedbacks (ice-albedo, permafrost methane release) amplify change; negative feedbacks (cloud cover, biological sequestration) dampen change; Paris Agreement (2015) — keep warming well below 2°C, pursue 1.5°C Demographic models and resource demand.
DTM
Stage 1 high birth/death → Stage 5 declining population (low BR, slightly higher DR) Malthus vs Boserup
Malthus — population grows geometrically, food arithmetically (crisis); Boserup — population pressure stimulates innovation AS-level fieldwork skills, coastal landscapes, and crowded coasts/unequal places.
Wave processes, sediment cells, sea-level change.
Wave types
Constructive (low frequency, swash > backwash, builds beach) vs destructive (high frequency, backwash > swash, erodes beach) Longshore drift
Swash at beach angle → backwash perpendicular to coast → net sediment movement along shore Sea-level change
Eustatic (global, ice melt/thermal expansion) vs isostatic (local, crustal rebound or subsidence) Sediment cells
Closed systems with source, transfer, and sink Primary data collection methods.
Quantitative — pebble analysis (a/b/c axes, Powers roundness), beach profiling, environmental quality index, traffic/pedestrian counts | Qualitative — questionnaires, field sketches, photo annotation Choose and justify a sampling strategy.
Random | systematic (every nth) | stratified (proportional to subgroup); justify in terms of bias, representativeness, practicality A2 synoptic study of resource pressures and global power.
Stores, flows, and supply mismatches.
Global energy mix dominated by fossil fuels (~80%); transition pressures; Energy Security Index = Availability × Affordability × Accessibility × Acceptability Drainage basin systems and water budgets.
Drainage basin equation
Q = P − E − T − S (Discharge = Precipitation − Evaporation − Transpiration − Storage change) Residence times
Atmosphere ~10 days, rivers ~2 weeks, soil moisture ~weeks–months, groundwater ~years–millennia Virtual water
Water embedded in production of goods/food traded internationally (e.g. ~15,000 L per kg beef) Stores, fluxes, and mitigation technology.
Carbon stores: atmosphere, biosphere, hydrosphere (largest), lithosphere; sequestration via photosynthesis and oceanic absorption; CCS — capture, transport, geological storage Measures and outcomes of globalisation.
KOF Globalisation Index (economic, social, political dimensions); AT Kearney Index; trade flows, FDI, TNCs; winners (HICs, urban skilled workers) vs losers (deindustrialised regions, low-skill labour) Power, geopolitics, and influence.
Hard vs soft power
Hard — military, economic coercion. Soft (Nye) — culture, diplomacy, values Mackinder's heartland theory
'Who rules East Europe commands the Heartland; who rules the Heartland commands the World-Island; who rules the World-Island commands the World.' Power blocs
Unipolar (post-Cold War USA), bipolar (Cold War), multipolar (emerging — USA, China, EU, India) Measuring development and global flows.
HDI
Geometric mean of life expectancy index, education index, GNI per capita index — 0 to 1 Gender Inequality Index (GII)
Reproductive health, empowerment, labour market participation — 0 (equal) to 1 (unequal) A2 synoptic paper plus the Independent Investigation coursework component.
Apply a structured process to the resource booklet.
Read all resources → identify the issue and stakeholders → weigh costs/benefits/risks → evaluate options against criteria (economic, social, environmental, political) → make a justified recommendation Connect physical AND human content explicitly.
E.g. tectonic hazard impacts (physical) shaped by vulnerability and capacity to cope (human/development) Standard report structure for the coursework component.
Introduction (location, theory, hypotheses) → methodology → data presentation → analysis (with statistical tests) → conclusion → evaluation → bibliography A focused question linked to specification content.
Phrase as a question or hypothesis with null hypothesis (H₀) and alternative (H₁); ground in geographical theory Quantitative skills assessed across all units and required for the Independent Investigation.
Test correlation between two ranked datasets.
Formula
rs = 1 − (6Σd² ÷ n(n² − 1)) Interpretation
+1 perfect positive, 0 no correlation, −1 perfect negative; check critical value at given degrees of freedom Test goodness-of-fit between observed and expected frequencies.
Formula
χ² = Σ((O − E)² ÷ E) Degrees of freedom
df = (rows − 1) × (cols − 1) Interpretation
Compare to critical value at chosen significance (often p = 0.05); reject H₀ if χ² > critical value Non-parametric test for difference between two independent samples.
Rank all data combined, sum ranks per sample, compute U₁ and U₂, take the smaller; compare to critical value table Parametric tests for difference of means (data must be approximately normal).
Independent t-test for two unrelated samples; paired t-test for matched/before-after data Useful summary indices.
Location quotient (LQ)
(Local industry % / Local total %) ÷ (National industry % / National total %); LQ > 1 indicates local concentration Lorenz curve & Gini coefficient
Gini = A ÷ (A + B); 0 = perfect equality, 1 = perfect inequality Maps, GIS, and spatial representation across all four units.
Common geographical maps and when to use them.
Choropleth
Shaded areas showing density/rates — categorical or quantitative Proportional symbol
Symbol size scaled to value (e.g. circles for city populations) Dot map
One dot represents a fixed quantity — shows distribution Isopleth
Lines connecting points of equal value (e.g. isohyets, isotherms) Geographic Information Systems — layered spatial analysis.
Layers (raster + vector); buffer, overlay, query, hotspot analysis; use for fieldwork data presentation in the Independent Investigation Standard spatial reading skills.
4-figure (square) and 6-figure (point) grid references; bearings (degrees from north, clockwise); contour interpretation; scale calculation (e.g. 1:25,000 = 4 cm to 1 km) Boost your Cambridge exam confidence with these proven study strategies from our tutoring experts.
Practise Spearman's, chi-squared, and Mann-Whitney with worked examples until you can compute them under exam conditions and interpret the result correctly.
For each topic, learn 2–3 specific case studies with names, dates, and statistics. Generic answers cap at low-mid bands across all four IAL units.
In WGE04 Researching Geography, examiners reward writing that consciously links physical processes to human vulnerability, governance, and inequality.
Choose a question whose hypothesis can be tested with primary data and at least one statistical test — it transforms your analysis section.
Quick answers about this free PDF and how to use it for exam revision and active recall.
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.
This page groups key Geography formulas in one place for revision. Master Pearson Edexcel International A Level Geography (XGE11/YGE11) with this 2026 formula sheet. Covers Units 1–4 (WGE01 Global Challenges, WGE02 Geographical Investigations, WGE03 Contested Planet, WGE04 Researchin… Always cross-check with your official syllabus and past papers for your exam session.
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.
It is written for students preparing for assessments at Post-Secondary in Geography, including classroom revision, homework support, and independent study. Teachers and tutors can also share it as a quick reference.
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.
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.
Work through physical and human content, statistical techniques, and the Independent Investigation with an experienced Edexcel International A Level Geography tutor. We focus on accurate models, quantitative confidence, and synoptic argument.
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This formula sheet aligns with the Pearson Edexcel International A Level Geography (XGE11/YGE11) specification for the 2026 exam series.
Always anchor models in named, real-world case studies and report statistical tests with both the value and significance interpretation.