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在高中阶段的立体几何教学过程中,教师需要让学生能够系统了解空间图形所具有的一些基本性质,并进一步了解一些结构简单多面体及其旋转体的绘制方法与面积求取公式,让学生在接触这些知识时形成空间想象力与逻辑理解力,从而为接下来自主发现问题、研究问题与解决问题服务。但是通过近些来的教学实践可以发现,立体几何对于高中学生来说,始终是一个难以突破的难点,学生的普遍反映几何要难于代数。究其原因,笔者认为无非是初中的平面几何与高中的立体几何跨
In the course of high school geometry teaching, teachers should make students understand systematically some basic properties of space graphics and learn more about some drawing methods and area calculation formulas of simple polyhedrons and their rotating bodies, This knowledge forms spatial imagination and logical comprehension, thus serving for the next autonomous discovery, research and problem solving. However, through the teaching practice in recent years, it can be found that three-dimensional geometry is always difficult for high school students to break through. The general reflection of students’ geometry is difficult to be algebraic. The reason, I think nothing more than the plane geometry of high school and high school three-dimensional geometric cross