在学习背向旋转式掷铁饼技术时,让教练员最头疼的一个问题就是:运动员的方向定位性差,起转后往往找不到“北”。导致的结果是铁饼不按他们所希望的方向飞行,出界自然成了“家常便饭”。针对这一情况,笔者在教学实践中发现利用双线可以很好地解决这一问题,具体如下: One of the most troubling questions for coaches when learning to turn the discus throwing technique is that the athlete’s orientation is poor and often can not find North. The result is that the discus does not fly in the direction that they want to fly out of bounds naturally become “commonplace ”. In response to this situation, the author found in the teaching practice using double lines can be a good solution to this problem, as follows: