As a group fitness instructor, how many different workouts should I have in my repertoire for each type of class I teach?

Thank you, Christine and Sean, I really appreciate your expert advice. I will be teaching a beginner total body conditioning class and when I rehearsed it with my very athletic 17 yo daughter she said, “Mom, you are going to kill everyone! It’s too intense and too complicated. Lighten up and have fun.” I will be referring back to your suggestions as I embark upon my new career!