以“双杠屈伸上动作(又叫蹬足起)是体操教学中杠上基本动作之一。前几年我教双杠屈伸上,课前对有的班级统计过,仅有几个学生能做此动作。那时的教法是:教师讲解动作要领、保护方法、做示范动作,然后进行分组学习。四节课后,最多有23—25％的学生能完成动作。近年来我们改进了教学方法,新的教法是:一、做辅助练习:①在地上(草坪上)、凳上或垫子上做仰 To "parallel bars flexion and extension movements (also known as pedaling foot) gymnastics teaching is one of the basic bar stomping a few years ago I taught parallel bars flexion and extension, class class statistics before class, only a few students can do this Action.At that time the method is: teachers explain the essentials of action, protection methods, demonstration, and then study in groups.After four classes, up to 23-25% of students can complete the action.In recent years, we have improved teaching methods , The new teachings are: First, do auxiliary exercises: ① on the ground (lawn), stool or mat