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教育是面向现代化,面向世界和面向未来的事业。而初中数学教学不仅仅要使学生掌握一定的数学知识的能力。在这方面,几何又是一块很好的“试验田”。长期以来初中生刚接触几何,入门是难关,这是因为学生从数和式方面转入到图形性质的研究,认识论上是一个飞跃。从数和式的计算,恒等变形转入到几何学中的从公里、定理出发运用逻辑论证,从方法论上又是一个新的飞跃。另外,加上平面几何概念大都较为抽象,况且这些内容用语
Education is a career oriented to modernization, the world and the future. The junior high school mathematics teaching not only to enable students to master a certain degree of mathematical knowledge. In this regard, geometry is a good “experimental field.” For a long time junior high school students just touch the geometry, the entry is difficult, it is because students from the number and style into the graphical nature of research, epistemology is a leap forward. From the number and type of calculation, the constant deformation into the geometry of kilometers from the theorem starting to use logical argument, from the methodology is a new leap forward. In addition, coupled with the geometric concept of the plane are mostly abstract, Moreover, these terms