教学实践使我们体会到,一个可以随意旋转、伸缩和倾斜的动感几何体课件的演示,能够方便学生对有关图形进行全方位多角度的观察与思考,及时准确地揭示和把握图形中点、线、面之间的位置关系,进而提高我们的教学效率。因此,学会制作动感几何体课件,应该成为现代数学教师必备的一? The teaching practice makes us realize that a demonstration of a dynamic geometry courseware that can be freely rotated, retracted, and tilted can facilitate the students to observe and think about all aspects of the graphic, and reveal and grasp the midpoint and line of the graphic in a timely and accurate manner. The positional relationship between faces, which in turn improves our teaching efficiency. Therefore, learning how to make dynamic geometry courseware should become a must for modern mathematics teachers?