一、持球站立方法教学中一般要求：两脚前后或左右开立，身体面对投掷方向，双手举球至头上方，上体稍后仰。这个要求不具体、模糊，而使许多学生持球时“两手紧紧包围着实心球，肘关节过于外张，有的甚至将球放至头的后部”。我在教学中要求学生在持实心球时，姆指尖、食指尖 First, the ball standing method General requirements for teaching: two feet before or after or about the body to face the direction of throwing his hands above the ball, the upper body later Yang. This requirement is not specific and vague, leaving many students to hold the ball “with both hands tightly around the solid ball, the elbows out of breath, and some even to the rear of the ball.” In teaching, I asked students to hold a solid ball, finger tips, fingertips