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分类思想是中学数学的重要思想之一,它贯穿于整个中学数学的全部内容中,是数学和其他各门学科常用的处理问题的思想方法,同时也是一种重要的解题策略,它体现了化整为零、积零为整的思想与归类整理的方法.在中考试卷中,分类讨论思想也贯穿其中,命题者经常利用分类讨论来加大试卷的区分度,很多压轴题也都设计成分类讨论,由此可见分类思想的重要性.掌握分类的方法领会其实质,对于加深基础知识的理解,提高
Classification ideology is one of the important ideas in middle school mathematics. It runs through the whole secondary school mathematics, which is a common way to deal with problems in mathematics and other disciplines. It is also an important strategy to solve problems. Fragmentation of zero, plot zero for the whole idea of sorting and sorting method.In the examination paper, the classification of thinking also runs through them, the proponents often use the discussion of classification to increase the distinction between paper, a lot of finale are also designed Class discussion, we can see the importance of the classification of ideas.Classification methods to grasp the essence of understanding, to deepen the understanding of basic knowledge, improve