认读 +、− 和 = 符号
Reading +, −, and = symbols
在算式中认读、书写并理解 +、− 和 = 符号的含义
Read, write, and interpret the symbols +, −, and = in number sentences
学习证据 / Evidence
- 将“3 + 2 = 5”读作“三加二等于五”
- 能根据具体的加法情境写出对应的算式
- 能将“=”理解为“等同于”，而不只是“得到答案”
- Read 3 + 2 = 5 aloud as 'three plus two equals five'
- Write a number sentence to match a concrete addition situation
- Interpret the = sign as 'is the same as' rather than just 'the answer is'
评估问题 / Assessment
如果你在纸上写下“4 + 3 = 7”，{{name}}能告诉你加号、减号和等号分别是什么意思吗？
If you write '4 + 3 = 7' on paper, can {{name}} tell you what the plus sign, minus sign, and equals sign each mean?