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一、课题背景高中新课程的《立体几何》教材知识严格遵照“直观感知”、“操作确认”、“思辨论证”、“度量计算”四个层次的认识过程展开实施教学.纵观几年来各省自主命题,《立体几何》的考查不外乎:空间几何体的结构及其三视图、空间直线与平面的位置关系、空间向量在立体几何中的应用等三种主要形式,其考查结构与难度大多比较基础.为此,很多老师为了帮助学生应对高考,往往就上述主要题型反复操练,拼
First, the subject background High school new curriculum “three-dimensional geometry” textbook knowledge strictly in accordance with “intuitive perception ”, “operation confirmation ”, “speculative argument ”, “metric calculation ” four levels of cognitive process In the past few years, autonomous provinces proposition, “three-dimensional geometry” test nothing more than: the geometry of the space geometry and its three views, the spatial relationship between the linear and the plane space vector in the three main applications such as geometry Form, the test structure and degree of difficulty are mostly more basic.To this end, many teachers in order to help students deal with the college entrance examination, often on the major types of questions repeatedly practice, fight