Some teachers make their students do push-ups as punishment. Push-ups are a good form of exercise. They should not be used as punishment.
I try never to punish my students. It is far better to positively encourage the students to practice. The best thing an instructor can do is to provide a good example.
If the class is unruly, perhaps the instructor should do the push-ups.
Respectfully,
Charles C. Goodin
