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.
อ่าน 4 นาทีอัปเดตเมื่อ: 21 มิ.ย. 2569
ภาพรวมข้อสอบ
จำนวนฉบับ
2
คะแนนเต็ม
120
เวลาสอบ
3ชม.
ประเภทคำถาม
5
ฉบับ
เวลา
คะแนน
จำนวนข้อ
น้ำหนักคะแนน
ประเภทคำถาม
Paper 1 Multiple Choice
45นาที
30
30
30%
Multiple Choice
Paper 2 Structured Questions
2ชม. 15นาที
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
เกณฑ์เกรด
A*ABCDEFGU
ข้อกำหนดเครื่องคิดเลข
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.
วัตถุประสงค์: Tabulate \(y\) across a range of \(x\) to locate sign changes (roots) and approximate maxima/minima.
ใช้เมื่อใด: Solving or sketching a function when you want to find where its graph crosses or turns.
ขั้นตอน
Enter the function in TABLE mode, set the start, end and step, then read where the sign of \(y\) changes or where it peaks.
ข้อควรระวังในการสอบ: 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)
วัตถุประสงค์: Read the mean \(\bar{x}\) and standard deviation directly, and the gradient/intercept (and \(r\)) of a linear regression for bivariate data.
ใช้เมื่อใด: Any data-handling, statistics, or required-practical analysis question.
ขั้นตอน
Enter the data in STAT mode (1-VAR or A+BX), then recall \(\bar{x}\), \(\sigma\) or the regression coefficients.
ข้อควรระวังในการสอบ: 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)
วัตถุประสงค์: Keep full-precision intermediate values to avoid rounding errors.
ใช้เมื่อใด: Multi-step calculations where premature rounding loses the final accuracy mark.
ขั้นตอน
Use Ans, STO/RCL or the M+ memory to reuse the unrounded result of each step; round only the final answer.
ข้อควรระวังในการสอบ: 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)
วัตถุประสงค์: Use the built-in EQN/SOLVE mode to verify roots of quadratics or simultaneous equations you have already solved by algebra.
ใช้เมื่อใด: As a check only, after solving by hand.
ขั้นตอน
Enter the coefficients in EQN mode (or use SOLVE) and confirm they match your worked solution.
ข้อควรระวังในการสอบ: Allowed on papers where a calculator is permitted; use a silent scientific calculator with no stored content and show your method.
ข้อผิดพลาดที่พบบ่อย
1highคะแนนที่เกี่ยวข้อง: 2Money and banking
Conflating commercial bank services with central bank functions (e.g., claiming commercial banks set national interest rates or issue currency).
วิธีหลีกเลี่ยง: Clearly distinguish their roles. Central banks manage monetary policy and currency issuance, while commercial banks accept public deposits, provide loans, and arrange household credit.
2highคะแนนที่เกี่ยวข้อง: 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.
วิธีหลีกเลี่ยง: Always structure 'Discuss' questions with a balanced, two-sided analysis. Use paragraphs that detail the arguments 'for' and separate paragraphs detailing the arguments 'against'.
3mediumคะแนนที่เกี่ยวข้อง: 2Inflation and deflation
Confusing disinflation (a slowing of the rate at which prices rise) with deflation (a sustained fall in the general price level).
วิธีหลีกเลี่ยง: 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).
วิธีหลีกเลี่ยง: Always label PPC axes with two specific goods or categories of output (e.g., 'Consumer Goods' and 'Capital Goods'), never Price and Quantity.
5mediumคะแนนที่เกี่ยวข้อง: 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.
วิธีหลีกเลี่ยง: 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.
6mediumคะแนนที่เกี่ยวข้อง: 2Firms and production
Using 'productivity' loosely to mean 'production' (total output) rather than efficiency of inputs.
วิธีหลีกเลี่ยง: 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.