一、预备姿势方面(一)预摆不协调产生原因:上体直立或过分前倾,身体僵硬,不放松,两臂没有带动身体向前上方摆动,主要是动作概念不清。纠正方法:(1)教师讲解示范动作,用图片等给学生树立正确的动作表象。(2)练习时不要发力,体会动作的连贯性,特别要注意让学生体会手臂带动身体摆动的感觉; First, the preparatory posture (a) pre-pendulum inconsistent causes: the upper body upright or excessive lean forward, the body is stiff, do not relax, the two arms did not drive the body forward and upward swing, mainly the concept of action is unclear. Corrective measures: (1) The teacher explains the demonstration action and uses the picture to set up the correct movement appearance for the student. (2) Do not exert force while practicing, and feel the coherence of the movement. Special attention should be paid to the students to feel the feeling of arm swinging.