数轴上的分数（9岁以上）
Fractions on a number line (age 9+)
能够在真实情境、图示、数轴、条形模型和符号方程之间自如转换，涉及多位数乘法、分数、小数和百分数，并能解释不同表示方法之间的联系。
Move fluently between real-world situations, diagrams, number lines, bar models, and symbolic equations involving multi-digit multiplication, fractions, decimals, and percentages, explaining connections between representations
学习证据 / Evidence
- 将一个缩放问题分别用条形模型和乘法方程表示出来
- 在百格图上展示0.35、35/100和35%都表示同一个数量
- 将折线图的读数转化为减法方程来求出差值
- Represent a scaling problem as both a bar model and a multiplication equation
- Show how 0.35, 35/100, and 35% all represent the same quantity on a hundredths grid
- Translate a line-graph reading into a subtraction equation to find the difference
评估问题 / Assessment
当{{name}}解决涉及百分数或多位数乘法的问题时，他们能否用条形模型、数轴和方程来表示同一个情境，并解释每一种表示方式代表什么？
When {{name}} solves a problem involving percentages or multi-digit multiplication, can they show the same situation using a bar model, a number line, and an equation — and explain what each one represents?