If you're going to teach a PE class (or coach a team, or do just about anything else) I always suggest using the "3 P's": plan, prep, and perform!!! This is very important. 1. Planning: I wouldn't move a muscle until I had everything planned out. For a PE teacher, you should have a plan for your entire school year: where you're going and what you want the students to learn. Then, you need to break down the school year into "Units" and plan those units accordingly into your schedule. Then, you need to plan the lessons which will constitute those units. So, that will be the schemes, or scope and sequence, you create. For example, if you want to do a unit on basketball, how will you progress through that unit. From dribbling skills, to shooting, to passing, to playing on the open court, etc.,etc. This is all planned in advance.
2. Preparation: Be sure you have everything you will need to do your lesson! Be sure to set-up the lesson and create the spaces and student movements you want for a maximum of management and time efficiency. You should know EXACTLY what and where the students will be doing for every minute of your PE class. This is part of your prep!
3. Performance: Time to teach PE class!
I did not make up the "The 3 P's." I got this years ago from the famous Marquette basketball coach, Al McGuire. He used to teach this to his players AND his assistant coaches. When I read about this, I thought how sensible, and simple an approach; but how effective!