1) Stand with your feet at shoulder width with your toes slightly out. Keep your head up and maintain a straight back throughout the movement.
Hold your arms in a way that will ensure your balance. You can have them extended in front of you or your hands touching their opposing shoulder.
2) Inhale and slowly lower the bar. Sit back with your hips as though you are going to sit on a chair. Make sure that you keep your back straight.
Keep going down until your legs are parallel to the floor.
3) Exhale and push yourself off the ground and jump. Remember to use your heels to generate force.
As you're jumping, raise your extended arms above your head.