According to the statistical data from the Audiovisual education laboratory used in recent years and the information from teachers and students who used Audiovisual education well, and combined the author s experience of Audiovisual education,the teaching effects of slide,projection,video recording and multimedia teaching system were studied.
根据近几年来学校电化教学室的使用情况和利用现代教育技术进行课堂教学的教师、学生提供的信息，结合电化教学实践经验，对幻灯、投影、教学录象及多媒体课堂教学系统等电教媒体的课堂教学效果进行了初步研究。
