数轴上的等值分数
Equivalent fractions on a number line
理解两个分数如果大小相同或对应数轴上的同一个点，那么它们是等值的；能利用图形识别并展示常见的等值分数组。
Understand two fractions as equivalent if they are the same size or the same point on a number line; recognise and show families of common equivalent fractions using diagrams
学习证据 / Evidence
- 用分数条表示 1/2 = 2/4 = 3/6
- 在数轴上验证 2/3 和 4/6 落在同一个点
- 借助图形找出至少三个与 1/2 相等的分数
- Use fraction strips to show 1/2 = 2/4 = 3/6
- Verify on a number line that 2/3 and 4/6 land on the same point
- Identify at least three fractions equivalent to 1/2 using diagrams
评估问题 / Assessment
如果{{name}}看到 2/4 和 1/2 在数轴上落在同一个点上，能用自己的话解释为什么这两个分数相等吗？
If {{name}} sees that 2/4 and 1/2 land on the exact same point on a number line, can they explain in their own words why those two fractions are equal?