Start in a small squat. Jump sideways to the left, landing on your left leg. Bring your right leg behind to your left ankle, and don't let it touch the floor.
Stand with your feet hip-distance apart and let your arms fall at your sides. Draw a semicircle with your right foot, moving it clockwise until it crosses behind your left foot. Lunge down as deeply as possible, hovering your knee a couple of inches off the floor.
Starting standing with feet shoulder-width apart. Jump your left leg forward and your right leg back into a lunge, with both knees at 90 degrees. Jump up and switch your legs in midair so that you land in a lunge with your right leg in front.