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　　Abstract: Computer Aided Instruction (Computer Aided Instruction of CAI for short) in computer-aided teaching and learning activities, dialogue with students to discuss course content and arrangements for the teaching process, teaching and training methods and techniques. The use of computer technology for teaching and research in physical education teaching process is to improve the efficiency of physical education teaching and improve students"" enthusiasm for computer technology in college physical education more open use of space.
　　Key words: Computer Aided Instruction; physical education teaching; Computer-aided teaching
　　1 A computer-aided teaching characteristics
　　Computer Assisted Instruction (Computer Aided Instruction of CAI for short) is in computer-aided teaching and learning activities, dialogue with students to discuss course content and arrangements for the teaching process, teaching and training methods and techniques. CAI provides students with a good personal learning environment. Comprehensive application of multimedia, hypertext, artificial intelligence, network communication and knowledge of computer technology, it has overcome the single way of the traditional teaching situation, one-sided shortcomings. Its use can effectively shorten the learning time and improve teaching quality and efficiency to achieve the optimal teaching objectives.
　　1.1 Multimedia computer assisted instruction can accurately reflect the students"" learning.
　　Traditional physical education teaching methods, learning feedback comes mainly from the teacher and through the teacher to observe, analyze, and correct it. The information in this feedback process, there are varying degrees of distortion. Larger classes, the teacher""s attention is easily distracted, everyone t can not be taken care of, for the students it is difficult to get timely feedback. The students did not mind the extent of their grasp, can not be timely to improve and improve. Multimedia teaching students can retain the right action, correct wrong action, by videotaping the action teaching, students can know their own actions and the gap of the standard action viewing, coupled with the analysis of teaching, correct the error action to be timely improvements to enhance the learning effect.
　　1.2 Multimedia computer assisted instruction has a wealth of expressive
　　Computer-aided teaching in the classroom teaching process, for different teaching content, the integrated use of sound, image, video, animation and other multimedia tools to create situations, mobilize the enthusiasm of the students, to stimulate students"" interest, it also be able to fully demonstrate teaching content, focused and Overcoming Difficulties, and guide students to actively explore, active learning. Some sports several consecutive actions are completed one-time and some action at the moment, alone teachers on demonstration difficult for students to understand and grasp. For example, when teaching students running, running is the technical complexity, the continuity of a strong cyclical movement, the second support period and the second during the Tang Li, relying on teachers to simply talk, can not give the students the concept. Computer-aided teaching, not only for students to show a complete and correct action arm movements such as running, swinging legs folded before the pendulum action, but also on the stride frequency and stride length in running for a quantitative analysis to help, guide the students targeted exercises. In addition, some projects such as gymnastics, back hop high jump, long jump, teachers can not "frame" in slow motion to complete, while the use of computer-aided teaching according to the actual needs of teaching technical action decomposition teaching so that students fully understand the action structure and the whole process; matched by a strong stimulus to music, the senses of the students, enhance memory, master action essentials.