由于中学生的年龄特点以及认知水平的限制,对一些具体问题解决后,多数学生的认知水平仍然停留在就题论题的阶段,缺乏深入思考、举一反三,更谈不上灵活运用、延伸、拓展和提高了.特别是七年级的学生,刚刚进入初中,乍一接触平面几何时,此现象更显突出,一听就懂,一做就傻眼,根本进入不了状态.针 Due to the age characteristics of middle school students and their cognitive limitations, after the solution of some specific problems, the majority of students still remain in the stage of questioning, lacking in deep thinking, giving top priority to problems, let alone agile use, extension and expansion And improved.Especially the seventh grade students, just entering junior high school, first contact with the plane geometry, this phenomenon is more prominent, one understands, once done dumbfounded, simply can not enter the state.