一、利用多媒体自身性能,创设既定的授课情境传统的数学教学依仗的是黑板、粉笔和教师的口述,课堂显得枯燥乏味,讲授的内容也显得杂乱死板,教学的过程呈现出了一定的静态化和被动化,学生参与课堂的时间和空间不足,积极性也较为薄弱.对于一些较为重要的内容,有的教师简化了教学过程,老师只有口述,有些学生难以理解,甚至听不懂.多媒体的出现就解决了这一问题,多媒体能以自身的图像、 First, the use of multimedia performance, create a set of established teaching situations The traditional mathematics teaching relies on the blackboard, chalk and teacher’s oral, the classroom appears boring, teaching contents seem messy, the teaching process has shown some static And passive, lack of time and space for students to participate in the classroom, the enthusiasm is also relatively weak.For some of the more important content, some teachers to simplify the teaching process, the teacher only oral, some students difficult to understand, do not even understand. To solve this problem, multimedia can take its own image,