So is physical education class. In the process of learning sports skills and forming stable dynamic stereotypes, students will be influenced by many factors and make mistakes. Teachers should not only correct such mistakes in time, but also prevent them in advance to optimize the teaching effect. First, the causes of wrong actions (1), students' unclear concept of learned actions (2), the influence of original wrong actions (3), students' poor physical fitness, low training level and difficulty in completing textbooks. (D) The arrangement of teaching materials is unsystematic, unscientific and unreasonable. (5) The teaching method does not conform to the students' foundation, and the practice level does not conform to the cognitive law and psychological and physiological characteristics. (6) Students' learning enthusiasm is not high or they are afraid of difficulties and fears. (7) Students lack the comprehensive analysis ability of actions, fail to grasp the key points, and fail to find the connection between actions and parts, which leads to action errors. The reason for this problem is that the teacher's teaching methods are conservative. (8) Poor teaching conditions, influenced by the surrounding environment. For example, poor teaching order, chaotic surrounding sound, insufficient equipment, poor venue, strong wind, too high or too low temperature will have a negative impact on teaching. Two, prevention and correction teaching is a bilateral activity between teachers and students, not only to play the leading role of teachers, but also to mobilize the enthusiasm of students. In addition, we should also consider the influence of teaching organization, teaching conditions and environment. Therefore, to solve this problem, there are three requirements: (1) the requirement for teachers to improve their professional quality. Constantly study the basic principles of physical education, master the physiological and psychological characteristics of students, and the law of the formation of human functional activities and motor skills. Efforts should be made to improve the level of explanation and demonstration, and modern teaching methods such as multimedia should be rationally used to help students establish correct action images more intuitively. 1, improving teaching organization methods Teachers should choose induction exercises reasonably and appropriately and arrange teaching steps correctly. We can teach at different levels according to the individual differences of students, arrange teaching tasks reasonably, fully estimate the possible mistakes in teaching and minimize the probability of mistakes. 2. Students will inevitably make unexpected mistakes in the process of summing up and reflecting. Teachers should be good at summarizing and reflecting, insist on writing after-class records and teaching reflections, and accumulate teaching experience. 3. Prepare lessons carefully and comprehensively. First of all, according to the requirements of the syllabus, carefully study the teaching materials, thoroughly understand the teaching materials, and grasp the key points and difficulties of the teaching materials. Secondly, the teaching plan should be designed according to students' age, gender, personality characteristics, hobbies, sports technology and skill base. In addition, according to the actual situation of the school, the venue and equipment should be arranged reasonably, so as to achieve multi-purpose in one class, wide use in small areas and multi-purpose in one thing, maintain a reasonable practice density and appropriate amount of exercise in class, and ensure good teaching results. (2) Requirements for students 1. Students should have clear learning objectives and correct learning attitudes. Pay attention to listening, watching carefully, thinking deeply and practicing seriously in class, give full play to subjectivity and mutual assistance spirit, and cooperate with teachers to complete the teaching tasks of each class. 2, often participate in sports activities, consciously exercise, and strive to improve physical fitness. (3) Requirements for teaching conditions and teaching environment Good teaching order and environment, qualified venues and adequate sports equipment and equipment are indispensable conditions for physical education, as well as material guarantee for preventing and correcting mistakes. In addition, there are ten measures: first, careful observation, the right medicine teacher should carefully observe the students' actions, observe what the mistakes are, and then deeply analyze the causes of the mistakes and determine effective correction methods, instead of turning a blind eye to the mistakes. Second, pay attention to cultivating students' sports ability, constantly improve their physical fitness and training level, encourage and encourage more, and enhance students' confidence. Third, change conditions, strengthen protection and help, and eliminate fear. For example, reduce the height of the jumping box and adjust the pedal distance, and the teacher will personally protect and help some students, so that they have the courage to do it. Another example: replacing the high jump pole with a rubber band to reduce the height of the high jump; Practice accelerating running by using terrain and slope. Fourth, the combination of individual guidance and centralized error correction requires individual guidance for individual errors. Sometimes, a little guidance or a little protection and help in language can solve problems without stopping others from practicing. But most people have similar mistakes, so stop practicing immediately and concentrate on correcting them. Fifth, use signs, send signals or correct mistakes with the help of equipment. For example, in the classroom practice of fast long jump, put a rubber band at the appropriate position behind the pedal to correct the mistake that the take-off angle of long jump is too small. 6. prioritize and grasp the key. For example, if a classmate makes many mistakes at the same time, the teacher must give priority to correcting the main and key mistakes. Sometimes the key mistakes are solved and other problems are solved. Seven, to overcome the original error interference should also carefully observe the original error, in-depth analysis, to see if the wrong stereotype has been formed. If there is no wrong stereotype, it is not difficult to correct it. After a period of guidance, the original mistakes can be changed. If the wrong stereotype has been formed, immediately stop the whole set of movements or complete the exercise. Only by changing the sequence of movements, reducing the intensity and difficulty of movements, changing the speed of movements, and using special, induced or transferred exercises to destroy the original wrong conditioned reflex can the whole set of movements or complete movements be restored. Eight, cultivate the ability to observe thinking and analyze problems, combine watching, thinking and practicing to educate students to observe carefully, think deeply and analyze carefully, practice actions actively and seriously, organically combine watching, thinking and practicing, establish temporary neural connection between the first signal system and the second signal system as soon as possible, and even form conditioned reflex, which can reduce the occurrence of errors. Nine, students help and guide each other According to the teaching plan and requirements, to a certain extent, students can help and guide each other and correct mistakes on a large scale. This method can be used to correct the mistakes in Wushu teaching and some suggestions. Ten, take emergency measures to change the original plan. In case of sudden changes in teaching conditions and environment, emergency measures should be taken to change the original plan and arrange practical teaching materials, which can reduce the possibility of mistakes. To sum up, preventing and correcting mistakes is an important problem in physical education teaching, especially for technical projects and new textbooks, which should be paid more attention. Every teacher should seriously discuss and properly solve this problem, which will continuously improve the quality of physical education teaching.