Maximize your Cambridge IGCSE Environmental Management score by mastering the 1.3-minute per mark rule, structuring balanced 6-mark evaluations, plotting flawless charts, and applying precise scientific vocabulary over vague generalizations.
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
160
制限時間
3時間 30分
出題形式
4
試験
時間
配点
問題数
配点比率
出題形式
Theory Paper
1時間 45分
80
8
50%
Short recall questions on geological cycles, farming, and ecosystems, Data-heavy structured evaluation on climate, hazards, and disease control, Extended synthesis with level-of-response criteria on resource consumption and atmospheric pollution
Management in Context Paper
1時間 45分
80
5
50%
Case-study demographic and mining assessment requiring plot creations and numerical rates, Energy distribution, dam projects, and natural hazard evaluation questions, Agricultural pest management and crop yield statistics, Practical ecological investigation using transects, pitfall traps, and biodiversity indices
評価段階
A*ABCDEFG
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: Knowledge with understanding (40%)
AO2: Information handling and analysis (35%)
AO3: Investigation and evaluation (25%)
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: 2Measuring and managing biodiversity
Confusing the concepts of bioaccumulation and biomagnification, or using the root word inside the definition block.
回避方法: Define bioaccumulation as the absorption and build-up of toxins within a single organism's lifetime. Define biomagnification as the increasing concentration of toxins passing up the trophic levels of a food chain.
2medium影響する配点: 1Managing the impacts of natural hazards
Writing vague geographic descriptions like 'above the Equator' or 'at the bottom of the map' instead of specific compass directions.
回避方法: Always use proper compass directions (North, South, East, West) or reference lines of latitude (e.g., 'North of the Tropic of Cancer' or 'at high latitudes') when describing distributions.
3high影響する配点: 4Measuring and managing biodiversity
Plotting bar charts with unequal bar widths, non-linear vertical scale increments, or omitting axes labels and units.
回避方法: Use a ruler to ensure all bars are of equal width. Ensure the scale increases linearly, covers at least half of the grid space, and copy both labels and units directly from the table headers.
4medium影響する配点: 2Managing water-related disease
Stating that malaria is contracted directly from drinking contaminated water.
回避方法: Explain that malaria is a protozoan disease transmitted to humans via the bite of an infected female Anopheles mosquito vector; dirty water only serves as a stagnant breeding ground for the vector.
5high影響する配点: 4Managing atmospheric pollution
Providing a one-sided argument in high-tariff 6-mark level-of-response questions.
回避方法: Structure your answer with distinct paragraphs covering both sides of the debate (the benefits/agree points and the drawbacks/disagree points) before providing a justified final conclusion.
6high影響する配点: 2Energy resources and the generation of electricity
Omitting units or correct rounding (e.g., not rounding populations to whole numbers or calculations to one decimal place when instructed).
回避方法: Read the final sentence of calculation instructions carefully. If asked for one decimal place, include it (e.g., write '30.0%' instead of '30%'). Always write down intermediate calculation steps and include requested units.
7medium影響する配点: 2The atmosphere
Plotting pie chart sectors out of descending size order or starting from a position other than 12 o'clock.
回避方法: Always start the first sector precisely at 12 o'clock / 0 degrees and plot the remaining sectors in clockwise, descending (largest to smallest) rank order.