【摘 要】
：
初中时,我们学习了平面几何的相关知识,现在拓宽到立体几何,由二维(平面)到三维(空间)的学习过程,既符合从简单到复杂的认知规律,也符合我们实际的生存状况.我们生活的空间里
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初中时,我们学习了平面几何的相关知识,现在拓宽到立体几何,由二维(平面)到三维(空间)的学习过程,既符合从简单到复杂的认知规律,也符合我们实际的生存状况.我们生活的空间里,各种物品都有着三维的结构,很自然地,我们会主动去研究分析这种结构.所以,我们在学习立体几何的时候,并不仅仅是为了学好数学的一个分支,而且是为了更好地认知这个世界.
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