初中数学是让学生初步了解数学的基本原理和对数学思维的培养.《初中数学新课程标准》指出:让学生能由实物的形状想象出几何图形,由几何图形想象出实物的形状,进行几何体与其三视图、展开图之间的转化;能根据条件做出立体模型或画出图形;能从较复杂的图形中分解出基本的图形,并能分析其中的基本元素及其关系;能描述实物或几何图形的运动和变化;能采用适当的方式描述物体间的位置关系;能运用图形形象地描述问题,利用直观来进行思考.在初中几何中,图形的变换主要有平移、对称、旋转三种形式,在具体的解体过程中,学生的运用并不能取得很好的效果.如果我们从现阶段遇到的例题来进行分析研究的话,可以看出这些题型都可以通过一定 Junior high school mathematics is to enable students to understand the basic principles of mathematics and mathematical thinking training. “Junior high school mathematics curriculum standards” that: allow students to imagine from the physical shape of the geometry, geometry from the imagination of the physical shape, geometry And its three views, expand the transformation between the picture; can make three-dimensional model or draw graphics according to the conditions; can be decomposed from the more complex graphics of the basic graphics, and can analyze the basic elements and their relationship; can describe the physical Or geometric movements and changes in the geometry; can use the appropriate way to describe the relationship between the position of the object; can use the graphical image to describe the problem, the use of intuitive thinking .In the geometry of the middle, the graphics transform mainly translation, symmetry, rotation Kinds of forms, in the process of concrete disintegration, the use of students and can not achieve very good results.If we from the current stage of the problems encountered in the analysis and research, we can see that these questions can be a certain