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数学是一门非常严谨的学科,几何证明讲究步步有据,严密推理,凡事多问几个为什么,切忌跳步证明.另外,要多关注细节,研究细节,抓住细节,细节决定成败!在数学学习中,要有这种“钻牛角尖”的追根究底精神,这也是《千万别恨数学》((韩国)韩昌洙)一书中提倡的一个观点.下面以平行四边形为例,提供五例在细节上有逻辑性错误、推理不严密的几何题,希望引起同学们的重视.
Mathematics is a very rigorous discipline, proof of geometry pay attention to well-founded, rigorous reasoning, why a few things to ask, do not jump proof .In addition, pay more attention to detail, study details, grasp the details, details determine the success or failure! In mathematics learning, there must be such a “bottom line” of the bottom-up spirit, which is “do not hate mathematics” ((South Korea) Hanchang Soo) a book advocated a book below to parallelogram, for example, Provide five cases of logical errors in the details, reasoning is not tight geometry, hoping to arouse the attention of students.