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学习和运用“分类讨论”的思想方法对培养同学们思维的条理性、缜密性,提高全面、周密地分析问题和解决问题的能力有着十分重要的作用.初中数学中有许多体现“分类讨论”思想的知识和技能.无论在代数还是在几何中都能找到.它们分布在概念的定义、定理的证明、运算的法则(性质)?
Learning and using the “discussion” approach has a very important role in cultivating students’ thinking and rigorous thinking and improving the ability to analyze problems and solve problems in a comprehensive and thorough manner. Many examples of junior middle school mathematics reflect “classification discussions”. The knowledge and skills of thought can be found both in algebra and in geometry. They are distributed in the definition of the concept, the proof of the theorem, the law of operation (nature)?