RootsEDU小学课程图谱与学习系统
数学 / Mathematics 乘法与除法 / Multiplication & Division CONCEPTUAL 8 至 9 岁

除法中的未知因数

Division as Unknown Factor

理解除法是求未知因数的运算(例如,计算32 ÷ 8时,可以先想哪个数乘8等于32)。

Understand division as an unknown-factor problem (e.g. find 32 ÷ 8 by finding the number that makes 32 when multiplied by 8)

学习证据 / Evidence

评估问题 / Assessment

{{name}}能否通过问“8乘几等于32?”来算出“32 ÷ 8”——也就是用乘法口诀而不是单独的除法方法?

Can {{name}} work out '32 ÷ 8' by asking 'what do I multiply 8 by to get 32?' — using times table knowledge rather than a separate division method?

先修关系图 / Learning path