Prep & Jump Prepper
A strength drill of jumping jacks, a lunge and a wall sit. Pushing into the preparation leg is what lifts you into pirouettes and off the floor in jumps.
In class, a set of about 50 jumping jacks is typical. Roll through the feet on the way down, then push from the hamstrings to come back up. Travel the lunge around the room, or do it in the center.