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三年级上册第71页的例8,是用乘除两步计算解决含有“归一”数量关系的实际问题,这一课是三年级上册第六单元的内容。作为三年级的学生,既掌握了用两步计算解决问题,也了解了解决问题的三个基本步骤:阅读与理解、分析与解答、回顾与反思。同时,对于解决问题的策略,学生会用画图、列表的方法解答问题。这个传统教学内容如何教学呢?我选取了我区六位教师执教本节课的录像及现场上课情况进行研究,以此为例,谈谈对“归一问题”的教学处理的一些浅见。
Example 8 on page 71 of the third grade book is the practical problem of solving the relationship between the numbers containing “normalization ” by multiplication and division, which is the sixth unit of the third grade. As a third grade student, I learned two steps to solve the problem and three basic steps to solve the problem: reading and comprehension, analysis and solution, review and reflection. At the same time, students will use the methods of drawing pictures and lists to answer questions about the strategies for solving problems. This traditional teaching content how to teach it? I chose my area six teachers coaching the lesson video and on-site class situation research, as an example, to talk about the .