From the standing position, bend your knees till you get to a squated or semi-squated position. Be close to a pole or squat rack to use for balance
Maintain the squat while shifting your weight onto the working leg and raising the other off the ground
Raise your heel off the ground
Hold the position for a split second before lowering your heel again
Do not rest at the bottom. As soon as you feel your heel touch the ground, repeat the movement