1. Bodyweight squat
Stand with your feet shoulder width apart. Start the movement by bending your knees and sitting back with your hips. Go down as far as you can and quickly reverse the motion back to the starting position. Keep your head up and back straight throughout the move.
2 Squat jump
Squat down, keeping your back straight, until your thighs are parallel with the floor and your bum is about level with your knees. Explode upwards into a jump, and go straight into the next squat.