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“求一个数是另一个数的几倍”的应用题是六年制小学数学第四册第一章中教学的重点内容之一。解答这类应用题的关键是把几倍的概念同一个数里包含了几个另一个数联系起来。因此教学时要使学生在理解的基础上掌握“一个数是另一个数的几倍”的意义,并能运用这一基本概念进行判断、推理。所以教学重点应放在概念的理解及新、旧知识的联系与区别上。据此,对这部分内容的教学作如下构想。一、复习新课之前的复习应有的放矢,从新旧知识的联
“Seeking a number is another several times,” the application of questions is six years of primary school mathematics book one of the first chapter of teaching one of the key elements. The key to answering this type of question is to associate several times the concept of several other numbers in the same number. Therefore, teaching students to grasp the basis of understanding “one number is several times the number of another” significance, and can use this basic concept of judgment, reasoning. Therefore, teaching should focus on the concept of understanding and new and old knowledge on the relationship and differences. Accordingly, the teaching of this part of the content as follows. First, the review before the new lesson should be targeted, from the old and new knowledge of the United