论文部分内容阅读
在中学阶段,对于几何图形的分类是几何学习中的重要内容.对于这部分内容的学习不仅可以加深学生对各种几何对象性质的认识,还有助于培养其分类的数学思想.因此,进一步掌握有关几何图形分类的内容,对于中学数学教师提高自身知识水平,增强数学素养都有一定帮助.分类的核心思想在于抓住几何对象的不变量.比如说,对于任意一个平面上的凸多边形,图形由它的边围成,可以按照边数对其分类,分为三角形、四
In the middle school stage, the classification of geometric figures is an important part of geometric learning, and the learning of this part can not only deepen students’ understanding of the nature of various geometric objects, but also help to develop their mathematical ideas of classification.Therefore, Grasping the content of the geometry classification can help the middle school mathematics teachers improve their own knowledge level and enhance the mathematics accomplishment.The core idea of the classification lies in seizing the invariants of geometric objects.For example, for any convex polygon on a plane, Graphics surrounded by its edges, according to the number of its classification, divided into triangles, four