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立体几何是一门不少中学生觉得难学,一些数学教师不愿任教的学科。这门学科确有不同于中学其它数学科的特点。不注意这一点,如用一般的教学程式去处理,不但教师觉得难
Three-dimensional geometry is a subject that many middle school students find difficult to learn and some mathematics teachers do not want to teach. This subject is indeed different from other mathematics in secondary schools. If you do not pay attention to this, if you use ordinary teaching programs to deal with it, not only teachers find it difficult