乘法阵列（7岁以上）
Arrays for multiplication (age 7+)
利用加法求出排列在最多5行5列的矩形阵列中物体的总数，并写出一个等式，把总数表示为相同加数之和。
Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and 5 columns; write an equation to express the total as a sum of equal addends
学习证据 / Evidence
- 数出一个3×4阵列中的物体数量，并写出4 + 4 + 4 = 12。
- 说明每一行的物体数量相同，因此可以通过重复加法求出总数。
- 画出一个矩形阵列，来表示给定的重复加法等式。
- Count objects in a 3×4 array and write 4 + 4 + 4 = 12
- Explain that each row has the same number of objects so the total can be found by repeated addition
- Draw a rectangular array to model a given repeated-addition equation
评估问题 / Assessment
如果{{name}}看到一张贴纸上共有4行、每行5张贴纸，他们能不能用重复加法——‘5 + 5 + 5 + 5’——求出总数，并把它写成等式？
If {{name}} sees 4 rows of 5 stickers on a sheet, can they use repeated addition — '5 + 5 + 5 + 5' — to find the total, and write it as an equation?