一、对分数定义的反思在数的认识中,分数对于小学生来说是一个比较抽象的概念,是数的认识中的一个难点,因此在小学阶段,对于分数的学习,教材一般分为两个阶段,第一阶段是分数的初步认识,第二阶段是分数的意义。我们知道分数的定义一般有两种:一是份数的定义(分数是把单位“1”平均分成若干份,表示这样的一份或几份的数);二是商的定义(分数是两个整数相除(除数不为0)的商)。在小学阶段大部分教材都采用了份数的定义,它的好处是直观, First, the definition of the definition of scores In the understanding of the number, the score is a relatively abstract concept for primary school students, is a difficult point in the understanding, so in the primary school stage, for the learning of scores, the teaching materials are generally divided into two Stage, the first stage is the initial understanding of the score, the second stage is the meaning of the score. We know there are two kinds of definition of scores: one is the definition of the number of shares (the score is the average of the unit “1 ” divided into several, indicating the number of such a or a few); Second, the definition of business (score Is divided by two integers (the divisor is not 0) quotient). Most of the textbooks in the elementary school have adopted the definition of the number of copies, and its benefits are intuitive,