重视比较发展思维──谈“数的整除”教学赵云峰“数的整除”是学习约分、通分、分数四则运算的基础。通过这部分内容的教学，使学生获得一些有关整数性质的知识，发展他们的抽象思维能力。本单元概念比较多，内空抽象，有些概念又是成对出现的，如质数和合数、奇数和偶数... Emphasis on Comparative Development Thinking - On the Teaching of Divisibility of Numbers Zhao Yunfeng “Dividing Numbers” is the basis for learning the arithmetic of dividing points, passing points and fractions. Through this part of the content of teaching, so that students get some knowledge about the nature of integers, develop their abstracted ability to think. The concept of this unit is more, the sky is abstract, some concepts appear in pairs, such as prime numbers and combined, odd and even ...