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【教法一】教师出示:(1)一只苹果的质量是一根香蕉的3倍;(2)一只苹果和一根香蕉共重400克。师:看到这两个条件,我们可以提出什么问题?生:一只苹果和一根香蕉各重多少克?
[Method 1] Teachers show: (1) an apple is three times the quality of a banana; (2) an apple and a banana weight 400 grams. Teacher: Looking at these two conditions, what questions can we ask? Student: How many grams of an apple and a banana?