Lie on the mat with arms lengthened along your sides and bring your knees to your chest. Take the legs back over your head. Bend the knees so the shins come to vertical and bring the hands in to prop the lower back up under the hips. While exhaling, extend the legs up straight to the ceiling, keeping the inner thighs glued together. Slowly begin to scissor the legs, taking one leg toward the face and one leg toward the mat. Repeat each side six times.