体育教学要解决动作技能的形成和提高问题。在开始学习动作阶段,学生的动作往往是紧张、吃力、不协调,有时还会出现摔跤、扭伤,甚至更为严重的事故。使学生对学习体育动作产生畏难害怕的心理。针对这一问题,我运用了一些防御性示范。一、防御性示范的应用机理 Physical education should solve the problem of the formation and improvement of motor skills. At the beginning of the learning and action stage, students’ actions are often intense, difficult, and uncoordinated, and sometimes wrestling, sprains, and even more serious accidents. Make students feel fearless and afraid of learning sports. In response to this problem, I applied some defensive demonstrations. I. Defensive demonstration application mechanism