分类讨论是人们常用的重要思想方法,无论是在生产活动、科学实验中,还是在日常的生活中,都常常需要用到它。初中数学中的分类讨论思想,就是根据数学对象本质属性的相同点与不同点,将其分成几个不同种类的一种数学思想。分类讨论是数学解题中的一个重要思想方法,它能训练人的思维的条理性和严密性。实质上, Disaggregated discussion is an important and commonly used method of thinking, which is often used in production activities, scientific experiments and daily life. The idea of ​​class discussion in junior middle school mathematics is to divide it into several different kinds of mathematical ideas according to the same or different points of the essential properties of mathematical objects. Classified discussion is an important way of thinking in mathematical problem solving, which can train the rational and rigorous human thinking. essentially,