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俊英
塾の窓から見える風景
11月16日 [水] 00:06
比例と反比例(Direct proportion and inverse proportion)
I taught the class direct proportion and inverse proportion today.
It is their weak unit.

I think that direct proportion should be dealt with in accordance with the stereotyped way of thinking.
In contrast, inverse proportion should be solved simply by means of using multiplication.

But it is difficult for the students to select the proper process.

晴れ
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