无论是40分钟的小学体育课,还是45分钟的中学体育课,都有上课时间的规定。在备课时,教师们会在教案相应的位置上,标注各部分的时间、各环节的时间,甚至各项练习的时间,或许大家已对时间分配习以为常,哪一部分、哪一个环节或练习分配多少时间,已经积累了经验。然而,不知是否考虑过时间的毛与净的问题,毛时间和净时间无论在长度上,还是在对应的内容 Whether it is a 40-minute primary school PE course or a 45-minute secondary school PE course, there are class time rules. In lesson preparation, teachers will mark the corresponding position in the lesson plan, marking each part of the time, all aspects of the time, or even the time of each exercise, perhaps you have time to allocate accustomed to what part of the link or practice how much Time has accumulated experience. However, I do not know whether to consider the issue of gross and net over time, gross and net time, whether in length or in the corresponding content