13.

A gym teacher is applying the principle of leverage in class. How is this MOST efficiently being demonstrated?

They are asking students to test their flexibility.

They are using progression when planning workouts.

They are showing how to add stiff plates in shoes.

They are teaching the proper form for squats.

The answer would be: They are teaching the proper form for squats.

By teaching the proper form for squats, the gym teacher is demonstrating how leverage can be efficiently utilized during the exercise. Squats engage multiple muscle groups and leverage is important to generate maximum force and strength while performing the movement correctly.