1. Practice kicking your feet. Whether you're floating on your back or still holding on to the edge of the pool, you can practice kicking. (To find out how far each kick can push you, you can practice using a swimming board. That way you can focus on practicing your kicks without worrying about keeping your head above the water).
Try doing a fan kick. Point your toes like a ballet dancer, keep your legs mostly straight, and move your feet as you kick. You will be able to feel your ankle arch.
Try a whip kick. Keep your feet close together from hip to knee, and from knee to ankle. Bend your knees so that your shins are raised at an angle of about 90 degrees, then quickly move your shins in opposite directions, and move them both in a circular motion, keeping your thighs close together for the duration. (That is, make a semicircle with each leg, moving your right foot to the right and your left foot to the left.) Bring your shins to the bottom of the circle and lift them both up again to kick back.
Try doing an eggbeater kick. This kick is usually used to tread water, and maintain yourself in a vertical position with your head and shoulders above the water. Start by bending your knees and legs slightly wider than your hips. Then "step" your feet like pedaling a bicycle, only the two feet are in opposite directions, when one foot steps forward, the other foot steps back. This method takes practice to get used to, but can be used to "rest" when your feet can't touch the bottom of the pool.
to be continued in the next article.