“每份数×份数=总数”这一数量关系式,我们认为在教一步计算的乘法应用题时,学生易于理解。但是进入二步计算应用题学习时,就显得不如用“每份数×份数=几份数”的数量关系式好。其理由是: 1、用“每份数×份数=几份数”这一数量关系 The relationship between the number of shares × the number of copies = the total number, we think the students can easily understand when teaching the multiplication problem in one-step calculation. However, two-step calculation of application questions into the study, it may not be as good as the “number of copies per serving = number of copies of the relationship between the number of good. The reason is: 1, with the ”number of copies per serving × number of copies of this relationship between the number