Beginning (left example) – Start in a push-up position on your hands and toes on the ground. Walk one foot at a time in towards your right hand then back to push up position, then walk into your left hand, alternating each time.
Intermediate (middle example) – Alternate lifting one knee/foot up towards the outside of your hand, keep switching driving right knee up to right hand then left knee up to left hand.
Advanced (right example) – Jump both feet/knees into right hand then back then left hand then back. Keep alternating jumping side to side.