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“九义”教材五年制小学《数学》第三册中安排了三组“两步计算的应用题”,这是学习两步应用题的开始,具有重要的作用,教学时应注意以下几点。一、做好铺垫自然过渡简单应用题是两步计算的应用题的基础。学生掌握两步计算的应用题,必须搞好一步计算向两步计算的应用题的过渡。两步计算的应用题是由两个相关联的一步计算的应用题组成的。教学前,要有意识地进行两个相关联的简单应用题的题组训练,再用连续性两问的简单应用题导入例题,帮助学生
“Nine meaning” textbook five-year primary school “mathematics” in the third book arranged three “two-step calculation problem”, which is learning the beginning of the two-step application, has an important role in teaching should note the following point. First, do a good job paving the way for the simple application of natural transition is a two-step calculation of the basis for application questions. Students master the application of two-step calculation problem, we must do a good job of calculating the two-step calculation of the application of the transition. Two-step calculation of the application of the question is composed of two associated one-step calculation of the application of composition. Before teaching, consciously carry out the training of the two groups of simple questions related to the subject, and then use the simple question of continuity two questions into examples, to help students