理解分数
Understanding fractions
能够在实际情境、图形以及包含三位数和分数的符号方程之间灵活转换，并解释每个部分表示什么。
Move fluently between real-world situations, diagrams, and symbolic equations involving three-digit numbers and fractions, explaining what each part represents
学习证据 / Evidence
- 写出一个包含三位数的方程，来对应一个关于测量或钱币的应用题。
- 画条形图表示一个分数问题，并利用它来解答。
- 解释数轴图如何与应用题中的数量相对应。
- Write an equation with three-digit numbers to match a measurement or money word problem
- Draw a bar model to represent a fraction problem and use it to solve
- Explain how a number line diagram relates to the quantities in a word problem
评估问题 / Assessment
当{{name}}解决涉及分数或三位数的数学问题时，能否在画图、使用数轴和列方程之间灵活转换，并解释每种表示方式说明了什么？
When {{name}} works through a maths problem involving fractions or three-digit numbers, can they switch between drawing a diagram, using a number line, and writing an equation — and explain what each one shows?