电教手段,指利用能够加工、存储和传递教学信息的媒体,例如幻灯、电影、电视、录音机、计算机等,并伴以相适应的教学形式,来组织、控制教学进程中的信息输出。电教手段,已在优化课堂教学结构、提高课堂教学效益方面发挥了积极作用。本文以片断式教学实例为例,对电教手段在物理教学中的初步应用谈点认识。一、用投影与演示相结合的方法,改进概念教学概念教学是物理教学的核心之一。枯燥乏味的概念教学已经成为许多学生厌学物理的重要原因。而采用电教手段进行概念教学,却可以收到较好的效果。例如,演示机械运动与相对运动。自制投影片,在银幕上投影出宏伟壮丽的长江大桥。利用抽动装置,使桥下轮船行驶,录音机内发出“呜呜”叫声。接着使桥面上汽车行驶,“嘟嘟”呜叫; Audio-visual means refers to the organization and control of the output of information in the teaching process by means of media that can process, store and transmit teaching information, such as slideshows, movies, TV sets, tape recorders, computers, etc., accompanied by appropriate teaching forms. Audio-visual teaching methods have played an active role in optimizing the classroom teaching structure and improving the efficiency of classroom teaching. In this paper, a case of teaching fragments, for example, on the teaching of electric teaching in the initial application of the point of understanding. First, with the combination of projection and presentation methods to improve the concept of teaching concepts Teaching is one of the core of physics teaching. The tedium of concept teaching has become an important reason why many students are tired of learning physics. However, the concept of teaching by means of audio-visual education, but you can receive better results. For example, demonstrate mechanical movement and relative movement. Homemade slide show, projected on the screen magnificent Yangtze River Bridge. Use of twitching device, so that the bridge under the ship, the recorder issued a “whining” cry. Then make the car on the bridge deck, “toot” woke;