2011年版的《数学新课程标准》把“动手操作”作为一个重要学习方式提出来。大量研究与实践表明,动手操作不仅可以帮助学生更好、更有效地学习数学,还可以提高学生的实践能力,积累实践经验,培养学生的创新能力。但是,在当前的数学教学中,有一部分教师认为让学生操作太麻烦,同时又担心学生动手操作时探索不出什么内容来,通过动画演示,学生可以更加直观形象地理解知识之间的内在联系,可以迅速地帮助学 The 2011 edition of the New Math Standard sets forth “hands-on operation ” as an important learning method. A lot of research and practice show that hands-on operation can not only help students learn mathematics better and more effectively, but also improve students ’practical ability, accumulate practical experience and cultivate students’ innovative ability. However, in the current mathematics teaching, some teachers think that it is too troublesome for students to operate and worry about what they can not explore when they do it. Through the animation demonstration, students can understand the internal relations between knowledge more intuitively , Can quickly help learn