Middle school students' sports lecture

You tell the students in the study group first, see the effect, record the time, and then adjust the time spent on each content. Be sure to clear your mind before giving a lecture and know what is the key and what is the difficulty. You don't know how to solve your suspected sexual problems. You can throw the problem to everyone and let them study and solve it together. I think the teacher may want you to really participate and be the master of the class.