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在数学学习中,我们不仅要重视数学知识的形成过程,还要注重挖掘数学知识中所蕴含的思想方法.有理数这一章中蕴含着许多重要的数学思想方法,了解和掌握它们,对于培养中学生的数学素养大有裨益.现就本章所体现的数学思想方法做一些介绍,供同学们参考.一、分类讨论思想负数的出现使数的概念得到再一次扩展,也使不少问题在不同的情形下出现截然不同的结论.需要分类讨论的题目一般涉及的知识点较多,考
In mathematics study, we should pay attention not only to the formation process of mathematics knowledge, but also to excavate the ideas and methods contained in mathematics knowledge.The rational numbers contain many important mathematical thinking methods to understand and master them, The mathematical literacy of great benefit.This chapter is reflected in the mathematical thinking and methods to do some introduction for the students to refer to.First, the classification of ideas The emergence of the negative number concept has been expanded again, but also make a lot of problems in different The situation appeared completely different conclusion.Need to be divided into more general topics involved topics discussed