电教手段是现代科技在教学中应用,是教育现代化的重要标志。它弥补了传统教学的不足,激发了学生的学习兴趣,对优化课堂教学起到了极其重要的作用。 The means of audio-visual education is the application of modern science and technology in education and is an important symbol of education modernization. It makes up for the lack of traditional teaching, aroused the students interest in learning, to optimize classroom teaching has played an extremely important role.