小数原是分母为10、100、1000……的分数用簡便方法写出来的数。但是,因为它和整数一样,也是十进的,它的计算法则基本上和整数又相同;学生在日常生活中接触小数的机会也比较多,所以,为了教学方便,现用的算术课本的教材编排,是先讲授小数再讲授分数。我们在少数的教学中,碰到一些问题,现在提出来,和大家研究研究。一、关于小数的意义和性质小数的概念是从生产劳动生活中的具体问题引进的。当給学生初次讲小数的时候,就要使他們了解“.”和以往学过的一些算术符号一样,也是一种算术符号,它叫小数点。一个数目中加有小数点,在小数点前面的数字是整数部分,后面的是小数部分。讲整数和小数数位順序表时,要结合把十进复名数写成小数的 The fractional number is the number of the fraction denominations 10,100,1000 ... written in a simple way. However, since it is also decimal in the same way as an integer, its calculation principle is basically the same as that of an integer. Students also have more chances to touch decimals in their daily lives. Therefore, for the convenience of teaching, the teaching materials of current arithmetic textbooks Orchestration, is to teach the decimal fraction and then taught. We have encountered some problems in a small number of teaching and are now proposed and studied together. First, on the meaning and nature of decimals The concept of decimals is introduced from the specific issues in the production of labor life. When you first give students a decimal, make them aware of “.” Like some arithmetic symbols learned in the past, it is also an arithmetic symbol called a decimal point. A number plus a decimal point, the number before the decimal point is the integer part, followed by the fractional part. Speaking integer and decimal digit sequence table, combined with the decimal number into decimals