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读了《中小学数学》(小学版)2010年第12期彭永新老师撰写的《“整数除以分数”教学新探索》一文,彭老师对于“整数除以分数”这个内容并不满足于计算方法的讲解,只要求学生掌握将除数先颠倒再相乘而不需要思考以下两个问题:为什么要把分数除法问题转化为分数乘法?怎样想到整数乘这个分数的倒数这一思路?这样的教学容易造成学生不明就里的机械练
Reading “primary and secondary mathematics” (12th Edition) 2010 12th Peng Yongxin teacher wrote “” integer divided by the score “Teaching New Exploration” article, Peng for “integer divided by the score ” this content is not Satisfied with the explanation of the calculation method, only requires students to master the divisor and then multiply without thinking about the following two questions: Why should the fractional division into a fractional multiplication? How to think of an integer multiplied by the reciprocal of this idea? Such teaching can easily lead to students who do not know where the mechanical training