案例背景教案是有目的、有计划的,是教师精心设计的教学过程。而真正的课堂并不是纸上谈兵,它是师生间、生生间不断交流互动,处于情感碰撞流动生成状态,所以即使教案设计的再完美,在体育课堂中还会出现不可预测的突发事件,这些意外有时令体育教师很尴尬、棘手、不知所措,但又不得不保证课堂教学的顺利进行,及 Case Background The lesson plans are purposeful and planned. They are well-designed teaching processes by teachers. And the real classroom is not a piece of paper, it is the teacher-student, students continue to interact with each other, in a state of emotional collision flow, so even if the lesson plans and then perfect design, there will be unpredictable unexpected events in the PE class, these Accidents sometimes make PE teachers awkward, tricky and overwhelmed, but they also have to ensure the smooth running of classroom teaching and