教学媒体是教学内容的载体与表现形式,是师生之间传递信息的工具,按媒体发展的先后,分为传统教学媒体与现代教学媒体,应用中应该根据具体情况合理取舍,显示教学的有效性。 Teaching media is the carrier and manifestation of teaching content. It is a tool for transmitting information between teachers and students. According to the successive development of media, it is divided into traditional teaching media and modern teaching media. Appropriate choices should be made according to specific circumstances, indicating effective teaching. Sex.