一个十就是十个一
A Ten Is Ten Ones
理解10可以看作由十个一捆成的整体，称为“一个十”。
Understand that 10 can be thought of as a bundle of ten ones — called a 'ten'
学习证据 / Evidence
- 把10个单独的小立方体组成一条十个的积木条，并解释原因
- 解释10个一等于1个十
- 将10个一兑换成1个十位积木
- Group 10 single cubes into one rod of 10 and explains why
- Explain that 10 ones is the same as 1 ten
- Exchange 10 ones for a single tens block
评估问题 / Assessment
{{name}}能解释十个单个物体捆在一起组成“一个十”，并且说明这就是为什么我们把10写成十位是1、个位是0吗？
Can {{name}} explain that ten single objects bundled together make 'one ten' — and that this is why we write 10 with a 1 in the tens place and a 0 in the ones place?