“能化成有限小数的分数的特征”是九年制义务教育六年制小学数学教材第十册(江苏教育出版社出版)的一个教学内容,下面是我教学这个内容的一个片段:出示一组分数:1/2、3/4、5/6、5/8、3/14、9/20、3/22、7/50,要求:(1)根据分数与除法的关系把它们化成小数,除不尽的保留三位小数 “Characteristics of the scores that can be turned into finite decimals” is a teaching content of Volume 10 of the six-year primary school mathematics textbook for nine-year compulsory education (Jiangsu Education Publishing House). Here is a snippet of my teaching: Points: 1/2, 3/4, 5/6, 5/8, 3/14, 9/20, 3/22, 7/50. Requirements: (1) According to the relationship between the score and the division of them into decimals, Except for the endless reservation of three decimal places