中小学在进行跳高教学中、普遍采用橡皮条或松紧带来代替竹竿组织教学,既经济实用、又解决了竹竿练习中所带来的各种不便。然而实践发现,用松紧带练习虽然方便实用,但却不能较清晰的显示出试跳者的试跳是否成功,这也是跳高项目最关键问题。为了解决这个问题,我制做了一个显示圈来判断学生是否跳过了横带。 In the teaching of high jump in primary and secondary schools, rubber bands or elastic bands are commonly used to replace the teaching of bamboo rafts, which is both economical and practical, and also solves the inconveniences caused by bamboo raft exercises. However, in practice, it has been found that although the use of elastic band exercises is convenient and practical, it cannot clearly show whether the trial jumpers have successfully tested the jump. This is also the most critical issue for high jump projects. In order to solve this problem, I made a display circle to judge whether students skipped the crossbar.