电教媒体以其生动、形象、直观的优越性越来越被数学教师青睐。它为课堂教学营造浓厚的教学氛围,激发起学生的学习兴趣;它以图文并茂的形式增强数学教学的直观性、形象性和生动性;它为释疑解难找到突破口;它让数学课堂走进生活。总之,合理的运用,能最大限度地发挥其教学优势,取得良好的教学效果。 Audio-visual media with its vivid, image, intuitive superiority more and more math teachers favor. It creates a strong teaching atmosphere for classroom teaching and stimulates students’ interest in learning. It enhances the visualization, vividness and vividness of mathematics teaching in the form of pictures and texts. It provides a breakthrough point for solving the problems; it brings the mathematics classroom into life. In short, the rational use of teaching can maximize its teaching advantages and achieve good teaching results.