“图形认识初步”是初中空间与图形领域的起始章,通过这一阶段的学习,同学们进一步欣赏了丰富多彩的图形,看到了更多的立体图形与平面图形,初步了解了立体图形与平面图形之间的关系,通过线段和角认识了一些简单的图形.这些知识构成了几何学大厦的牢固基础,我们只有对它们了如指掌,才能学好后面的知识. “Graphics Recognition Preliminary ” is the starting chapter of junior high school space and graphics field, through this stage of learning, students further appreciate the rich and colorful graphics, see more three-dimensional graphics and graphic graphics, an initial understanding of the three-dimensional The relationship between a graph and a plane graph recognizes some simple shapes by lines and corners, which form the solid foundation of a geometric building, and we can learn the latter well only if they are well-versed in them.