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.
閱讀時間 4 分鐘更新於: 2026年6月21日
試卷概覽
卷數
2
總分
160
考試時間
3小時 30分鐘
題型
4
試卷
時間
分數
題數
比重
題型
Theory Paper
1小時 45分鐘
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小時 45分鐘
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
評級
A*ABCDEFG
計算機規定
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%)
根據歷屆試題與評分準則整理（2023–2025）。
計算機程式
Table mode for roots & turning points
Scientific calculator (e.g. Casio fx-991 series)
用途: Tabulate \(y\) across a range of \(x\) to locate sign changes (roots) and approximate maxima/minima.
使用時機: Solving or sketching a function when you want to find where its graph crosses or turns.
步驟
Enter the function in TABLE mode, set the start, end and step, then read where the sign of \(y\) changes or where it peaks.
考試提示: 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)
用途: Read the mean \(\bar{x}\) and standard deviation directly, and the gradient/intercept (and \(r\)) of a linear regression for bivariate data.
使用時機: Any data-handling, statistics, or required-practical analysis question.
步驟
Enter the data in STAT mode (1-VAR or A+BX), then recall \(\bar{x}\), \(\sigma\) or the regression coefficients.
考試提示: 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)
用途: Keep full-precision intermediate values to avoid rounding errors.
使用時機: Multi-step calculations where premature rounding loses the final accuracy mark.
步驟
Use Ans, STO/RCL or the M+ memory to reuse the unrounded result of each step; round only the final answer.
考試提示: 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)
用途: Use the built-in EQN/SOLVE mode to verify roots of quadratics or simultaneous equations you have already solved by algebra.
使用時機: As a check only, after solving by hand.
步驟
Enter the coefficients in EQN mode (or use SOLVE) and confirm they match your worked solution.
考試提示: Allowed on papers where a calculator is permitted; use a silent scientific calculator with no stored content and show your method.
常見錯誤
1high涉及分數: 2Measuring and managing biodiversity
Confusing the concepts of bioaccumulation and biomagnification, or using the root word inside the definition block.
如何避免: 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涉及分數: 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.
如何避免: 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涉及分數: 4Measuring and managing biodiversity
Plotting bar charts with unequal bar widths, non-linear vertical scale increments, or omitting axes labels and units.
如何避免: 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涉及分數: 2Managing water-related disease
Stating that malaria is contracted directly from drinking contaminated water.
如何避免: 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涉及分數: 4Managing atmospheric pollution
Providing a one-sided argument in high-tariff 6-mark level-of-response questions.
如何避免: 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涉及分數: 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).
如何避免: 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涉及分數: 2The atmosphere
Plotting pie chart sectors out of descending size order or starting from a position other than 12 o'clock.
如何避免: 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.