IB Math: Full Marks Exam Techniques | IB 数学：满分答题技巧

📚 IB Math: Full Marks Exam Techniques | IB 数学：满分答题技巧

A perfect score in IB Mathematics demands more than just raw talent; it requires a disciplined, exam‑focused strategy that embraces time management, clarity, and rigorous checking. This guide distils the essential techniques you need to turn your knowledge into full marks across Papers 1, 2, 3 and the Internal Assessment.

IB 数学的满分不只靠天赋，更需要一套纪律严明、紧扣考试的策略，涵盖时间管理、清晰的表达和严格的检查。本指南提炼了关键技巧，帮助你在试卷一、二、三和内部评估中将知识转化为满分。

1. Understand the Exam Structure and Marking Criteria | 理解考试结构与评分标准

Before anything else, study the format of your specific course (AA or AI, SL or HL). Know the number of questions, marks, and whether a calculator is allowed. The mark scheme assigns M (method), A (accuracy), and R (reasoning) marks. Even if your final answer is wrong, a clear, correct method still earns method marks, so never skip showing your thought process.

首先，研究你具体课程的考试形式（AA或AI，SL或HL）。清楚题量、分值和是否允许使用计算器。评分方案分 M（方法）、A（准确性）和 R（推理）分数。即使最终答案错误，清晰正确的方法仍能获得方法分，因此绝不能省略解题思路的展示。

2. Master Time Management | 掌握时间管理

Divide the total minutes by the total marks to get a per‑mark pace, then build in a 10–15 minute buffer for checking. Start with the questions you find easiest to secure quick marks and build confidence. If a question stalls you for more than twice its mark value in minutes, flag it, move on, and return with a fresh perspective later.

用总时长除以总分得出每分的节奏，然后留出10–15分钟的检查缓冲。先做最简单的题目，锁定分数并建立信心。如果一道题卡住的时间超过其分值两倍（以分钟计），标记后跳过，稍后换一种思路再回来解决。

3. Read Questions Carefully and Identify Key Information | 仔细读题并识别关键信息

Spend the initial 30 seconds reading the question twice. Underline command terms like ‘prove’, ‘hence’, ‘find the exact value’, and ‘state the domain’. Note the mark allocation—a 1‑mark question typically requires a single numeric answer or short statement, whereas a 6‑mark question expects a well‑structured multi‑step solution with justification.

用起初的30秒把题目读两遍。划出“证明”、“因此”、“求精确值”、“写出定义域”等指令词。留意分值的提示——1分的题往往只需要一个数字或简短的陈述，而6分的题则期待结构清晰的多步骤解答并给出依据。

4. Show All Working Clearly | 清晰展示解题过程

Examiners reward visible logical flow. Write each algebraic or calculus step on a new line, using correct equality signs and brief annotations. If you rely on the GDC for a computation, note the function used (e.g., ‘Using GDC, normalcdf(-1.5, 1.2) ≈ 0.793’). This transparency safeguards method marks even when rounding errors occur.

考官奖励可视的逻辑流程。将每个代数或微积分步骤另起一行写，使用正确的等号和简要注释。若依靠GDC完成计算，注明所用功能（例如“使用GDC, normalcdf(-1.5, 1.2) ≈ 0.793”）。这种透明性即使在舍入误差出现时也能保住方法分。

5. Use the GDC (Graphic Display Calculator) Wisely | 明智使用图形计算器

Always check the mode (degree/radian) and clear any stored equations before starting a new problem. When graphing, adjust the window to show critical features, and label intercepts and turning points from the calculator on your sketch. Double-check solutions obtained by ‘solve’ by substituting them back into the original equation.

开始新题前，务必检查模式（角度/弧度）并清除任何存储的方程。绘图时，调整窗口以显示关键特征，并在草图上标出从计算器读出的截距和拐点。对于用“solve”

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