Master the Cambridge IGCSE Economics (0455) syllabus and exam with our examiner-backed toolkit. Learn key strategies to dominate the Paper 2 structured answers, avoid terminal diagram mistakes, and structure level-3 responses.
読了時間 4 分更新日: 2026年6月21日
試験の概要
試験数
2
満点
120
制限時間
3時間
出題形式
5
試験
時間
配点
問題数
配点比率
出題形式
Paper 1 Multiple Choice
45分
30
30
30%
Multiple Choice
Paper 2 Structured Questions
2時間 15分
90
4
70%
Data Interpretation and Calculation, Identification, Short Explanation with Diagram/PPC, Draw Supply-Demand Diagram, Structured Analysis, Evaluative Discussion, Definition, Explanation, Analysis, Discussion
評価段階
A*ABCDEFGU
電卓の規定
A silent scientific calculator may be used on papers where calculators are permitted (some papers are non-calculator). It must not be graphical or programmable and must hold no stored information.
AO1: AO1 Knowledge and understanding (35%)
AO2: AO2 Analysis (35%)
AO3: AO3 Evaluation (30%)
過去問と採点基準にもとづいて作成（2023–2025）。
電卓プログラム
Table mode for roots & turning points
Scientific calculator (e.g. Casio fx-991 series)
目的: Tabulate \(y\) across a range of \(x\) to locate sign changes (roots) and approximate maxima/minima.
使う場面: Solving or sketching a function when you want to find where its graph crosses or turns.
手順
Enter the function in TABLE mode, set the start, end and step, then read where the sign of \(y\) changes or where it peaks.
試験での注意: Allowed on papers where a calculator is permitted; use a silent scientific calculator with no stored content and show your method.
Statistics mode (mean, SD & regression)
Scientific calculator (e.g. Casio fx-991 series)
目的: Read the mean \(\bar{x}\) and standard deviation directly, and the gradient/intercept (and \(r\)) of a linear regression for bivariate data.
使う場面: Any data-handling, statistics, or required-practical analysis question.
手順
Enter the data in STAT mode (1-VAR or A+BX), then recall \(\bar{x}\), \(\sigma\) or the regression coefficients.
試験での注意: Allowed on papers where a calculator is permitted; use a silent scientific calculator with no stored content and show your method.
Carry exact values with Ans & memory
Scientific calculator (e.g. Casio fx-991 series)
目的: Keep full-precision intermediate values to avoid rounding errors.
使う場面: Multi-step calculations where premature rounding loses the final accuracy mark.
手順
Use Ans, STO/RCL or the M+ memory to reuse the unrounded result of each step; round only the final answer.
試験での注意: Allowed on papers where a calculator is permitted; use a silent scientific calculator with no stored content and show your method.
Equation solver — to CHECK your working
Scientific calculator (e.g. Casio fx-991 series)
目的: Use the built-in EQN/SOLVE mode to verify roots of quadratics or simultaneous equations you have already solved by algebra.
使う場面: As a check only, after solving by hand.
手順
Enter the coefficients in EQN mode (or use SOLVE) and confirm they match your worked solution.
試験での注意: Allowed on papers where a calculator is permitted; use a silent scientific calculator with no stored content and show your method.
よくあるミス
1high影響する配点: 2Money and banking
Conflating commercial bank services with central bank functions (e.g., claiming commercial banks set national interest rates or issue currency).
回避方法: Clearly distinguish their roles. Central banks manage monetary policy and currency issuance, while commercial banks accept public deposits, provide loans, and arrange household credit.
2high影響する配点: 3The macroeconomic aims of government
Providing one-sided responses to 'Discuss' command prompts in Paper 2, which caps the score to a maximum of Level 2.
回避方法: Always structure 'Discuss' questions with a balanced, two-sided analysis. Use paragraphs that detail the arguments 'for' and separate paragraphs detailing the arguments 'against'.
3medium影響する配点: 2Inflation and deflation
Confusing disinflation (a slowing of the rate at which prices rise) with deflation (a sustained fall in the general price level).
回避方法: Remember that under disinflation, the inflation rate is still positive (e.g., falling from 5% to 2%), meaning prices are still rising. Deflation only occurs when the rate goes below 0%.
Drawing Production Possibility Curve (PPC) diagrams with reversed, missing, or incorrect axis labels (such as Price and Quantity).
回避方法: Always label PPC axes with two specific goods or categories of output (e.g., 'Consumer Goods' and 'Capital Goods'), never Price and Quantity.
5medium影響する配点: 4Current account of balance of payments
Confusing the government's budget balance (deficit or surplus from fiscal policy) with the current account of the balance of payments.
回避方法: Remember that the budget balance relates to government tax revenue versus government spending, whereas the current account measures international trade in goods, services, and primary/secondary incomes.
6medium影響する配点: 2Firms and production
Using 'productivity' loosely to mean 'production' (total output) rather than efficiency of inputs.
回避方法: Define productivity strictly as output per unit of input (e.g., output per worker per hour), whereas production refers to the total volume of goods and services produced.