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一、器材开发有隐患,莫被隐患吓破胆开发新的体育器材尤其是非正规器材,教师们最大的担忧是安全问题。其实,只要充分预见、反复试验、精心备课,安全问题完全可以扼杀于萌芽之中。提前预见,是在充分考虑所要制作的器材的合理性、必要性、实效性及安全性的基础上,尤其要对今后在使用过程中可能出现的安全隐患有所预见。器材本身够不够牢固,多次使用会不会改变原有的结构;在使用过程中随着受力的增加和受力的不均匀,会不会容易出现损坏。比如用塑料瓶装沙子自制手榴弹时,要预见塑料瓶由高处下落撞击地面后,是否会导致瓶体
First, the development of equipment has hidden dangers, not to be threatened by fear of potential development of new sports equipment, especially non-formal equipment, the biggest concern for teachers is the security issue. In fact, as long as full foresight, repeated tests, careful preparation of lessons, security problems can be completely strangled in the bud. Predicting ahead of time is based on the reasonableness, necessity, effectiveness and safety of the equipment to be produced. In particular, it is necessary to foresee the potential safety hazard in the future. Equipment itself is not strong enough, repeated use will not change the original structure; in the course of the increase with the force and force uneven, will not be prone to damage. Such as using plastic bottles of sand made grenades, to predict the drop from the height of plastic bottles hit the ground, it will lead to the bottle