立体几何是高中数学课程内容中的一项重点,也是一大难点,在考试中也占有较大比重,很多同学认为立体几何难学,对学习立体几何抱有畏惧心理,缺乏学习兴趣和信心。因此,本文就立体几何中有关证明的三个步骤进行详细说明。在立体几何证明的三步骤中首先要注意的是要把握题目内容,只有充分了解题意才能有针对性地对所提出的问题进行深入探 Three-dimensional geometry is a high school mathematics curriculum content is a key, but also a major difficulty in the examination also occupy a large proportion of many students think that three-dimensional geometry difficult to learn, three-dimensional geometry with fear, the lack of interest and confidence in learning. Therefore, this paper describes the three steps of the three-dimensional proof in detail. In the three steps of the three-dimensional geometric proof, the first thing to note is that we must grasp the content of the subject. Only by fully understanding the questions can we thoroughly probe the issues raised