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简单应用题既是小学数学的基础,又是低年级数学的重点和难点。第二册中的“求两数相差多少”、“求比一个数多几(少几)的数是多少”的简单的加、减法应用题。如教学不得法,学生往往会见“多”就加,见“少”就减。为了避免这一现象,现就新教材的编排特点谈谈教学建议。 一、新教材的编排特点 “求两数相差多少”、“求比一个数多几(少几)的数是多少”这三种类型简单的加减法应用题,在旧教材中是分散编排的,虽然学生容易按类型逐个掌握,但所获得的知识是孤立的、零散的,需用较多的时间反复多次地对比练习,学生才能较好地掌握解题方法。“九义”教材则是把这三种类型简
Simple application questions are not only the basis of elementary mathematics, but also the key and difficult point of mathematics in lower grades. The second volume of “how much difference between the two numbers”, “a few more than a few (what) is the number of” simple addition and subtraction applications. If teaching is not legal, students often meet with “more” and add less, see “less” and less. In order to avoid this phenomenon, we will talk about teaching suggestions on the features of the new textbooks. First, the new textbook features “how many difference between the two numbers”, “what is the number of a few (what) is the number of” these three types of simple addition and subtraction applications, the old textbooks are scattered arrangement Although students are easy to grasp by type one by one, the acquired knowledge is isolated and fragmented, requiring more time to compare and practice repeatedly, so that students can master the problem solving method well. “Nine meaning” textbook is to put these three types of Jane