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Beginning (gram on the left) – Holding a lighter weight in your hand, start with your feet together then step out one leg and bend it into a lunge. Try and keep your other leg as straight as you can, then step back to starting position.
Intermediate (mom in the middle) – Holding a medium-weight dumbbell in your hand and standing with your feet together, step out one leg and bend it into a lunge. Try and keep the other leg as straight as you can, then step back to starting position.
Advanced (me on the right) – Holding a heavy dumbbell in your hand and standing with your feet together, step out one leg and bend it into a lunge. Try and keep the other leg as straight as you can, then step back to starting position.