数学教学离不开多媒体的帮助,可是在现实结合的过程中却能发现三种不良的现象:为多媒体教学而进行多媒体教学,用课件代替学生的思维与操作,片面追求花哨的技术含量。根据多年教学的跟踪研究,提出了三种改变策略:以更新教育教学观念为准备,以激发学生学习兴趣为主要任务,以培养学生的数学思维能力为中心。 The teaching of mathematics can not do without the help of multimedia, but in the process of combining reality, it can find three kinds of bad phenomena: multimedia teaching for multimedia teaching, courseware instead of thinking and operation of students, one-sided pursuit of fancy technical content. According to the follow-up study of many years of teaching, three strategies for change are put forward: to update the concept of education and teaching, to stimulate students ’interest in learning as the main task, and to cultivate students’ mathematical thinking ability as the center.