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学习平面几何,无论是计算题,还是证明题,都需要进行有依据的推理。这里所说的依据就是几何中的定义、定理、公理等基本概念。熟记这些基本概念并能结合具体图形准确地把其精神实质用字母和符号语言再现出来是学好几何的重要一环。也就是说,对几何中的定义、定理、公理等基本概念和基础知识非记不可,不记不行。由于很多学生都认识到了这一点,所以在识记上下了很大的功夫。然而,有的学生记点东西很费劲,时间花费不少但丢三落四的就是记不住,有的当时记住了,但时间一
Learning plane geometry, whether it is a calculation problem or a proving problem, requires a reasoning basis. The basis here is the basic concept of definition, theorem and axiom in geometry. It is an important part of studying geometry to memorize these basic concepts and to be able to accurately reproduce their spiritual essence in alphabetical and symbolic languages in conjunction with specific figures. In other words, the basic concepts and basic knowledge such as definitions, theorems, and axioms in geometry are not to be kept in mind. As many students have realized this, they have made great efforts to remember. However, some students are struggling to keep something in mind. It takes a lot of time but it loses nothing. Some people remember it, but time is