Draw a Picture and Write an Equation | 画图列式解应用题

📚 Draw a Picture and Write an Equation | 画图列式解应用题

Many IGCSE Foundation word problems become much easier when you first draw a simple picture and then write an equation from that picture.

许多 IGCSE 基础阶段的文字题，在你先画出一个简单示意图并据此列出方程后，会变得容易得多。

This strategy turns sentences into visual structures, so you can see which operation to use.

这个策略把句子转化为视觉结构，让你能够看出该用哪种运算。

1. What Is the Draw a Picture Strategy? | 什么是画图策略？

Drawing a picture means turning words into bars, number lines, arrays, or part-whole diagrams before doing any calculation.

画图策略是指在计算之前，先把文字转化为条形图、数线、阵列图或部分-整体图。

It is not about making an artistic drawing. It is about making the mathematical relationship visible.

它不是为了画出好看的图画，而是为了让数学关系变得清晰可见。

A clear picture helps you decide whether to add, subtract, multiply, or divide.

清晰的图画能帮助你决定该用加法、减法、乘法还是除法。

2. Why Drawing Helps in IGCSE Maths | 为什么画图对 IGCSE 数学有帮助

Word problems contain information in sentences, which can be hard to hold in working memory.

文字题中的信息以句子呈现，在工作记忆中很难全部保持。

A bar model or number line turns that hidden information into a structure you can see.

条形图或数线能把隐藏的信息变成你可以看到的结构。

Once the structure is visible, choosing the correct operation becomes much easier.

一旦结构清晰可见，选择正确的运算就会容易得多。

This skill is especially useful for multi-step IGCSE questions where two or more operations are needed.

对于需要两步或更多运算的 IGCSE 题目，这一技能尤其有用。

3. Read the Problem Twice | 把题目读两遍

First, read for the story: who or what is involved and what is happening.

第一遍，为了了解大意：涉及谁或什么，以及发生了什么事。

Second, read for the numbers and the question: underline the quantities, the comparison words, and the final question.

第二遍，关注数字和问题：在数量、比较词语和最后的问题下面画线。

Ask yourself: “What do I know?” and “What do I need to find?”

问自己：”我知道什么？”和”我需要求什么？”

This two-read method prevents you from jumping to a calculation too quickly.

这种读两遍的方法可以防止你过快地开始计算。

4. Choose the Right Picture | 选择合适的图

Different problems call for different visual models.

不同的问题需要不同的图示模型。