新课程标准提出:学生是学习和发展的主体,教学内容的确定、教学方法的选择、评价方式的设计,都应有助于这种学习方式的形成。在教学中,教师应该根据学生的学情,合理安排教学内容,灵活选择教学方法,努力营造活跃的课堂气氛,充分调动学生的学习积极性、主动性,让课堂由以老师教为主变为学生主动学。多媒体是一种把文本、图形、形象、视频 The new curriculum standard proposes that students should be the main body of learning and development. The determination of teaching contents, the choice of teaching methods and the design of evaluation methods should all contribute to the formation of this learning method. In teaching, teachers should be based on the students’ learning, reasonable arrangements for teaching content, flexible choice of teaching methods, and strive to create an active classroom atmosphere, and fully mobilize the enthusiasm of students learning, initiative, so that the classroom from teacher to teacher Active learning. Multimedia is a type of text, graphics, image, video