搞好立体几何的启蒙教学,当好学生“入门”的引路人,需从多方入手,这里仅在教材处理和作图训练方面谈一些看法。一现行立体几何课本第一章(直线和平面)的编写顺序,从教材体系的完整性角度来看,当然是顺理成章的。但是,从教学的角度出发,从学生的可 To do a good job of enlightenment teaching of three-dimensional geometry, as a good guide for introductory students, we need to start from many aspects. Here we will only talk about teaching materials processing and drawing training. The order in which the first chapter of the current three-dimensional geometry textbook (line and plane) is written is, of course, logical and logical from the point of view of the integrity of the textbook system. However, from the teaching point of view, from the students can