Crunch: Use the floor or an exercise ball. Remember you are trying to contract your muscles. You do not have to pull your elbows to your knees. Come up enough to feel your stomach working and that is far enough.
Leg Rises: Lie flat on your back. Put your feet together. Raise them off the floor until your body forms and L and then lower them back to about 6 inches off the floor. Repeat, repeat, repeat….
Flutter Kicks: This is the same idea as the leg raise but you are doing one leg at a time and not coming as high up. Remember to keep both feet at least 6 inches off the ground as you are alternating your leg raise.
Knees to Elbows: Lie flat on your back. Raise your legs 6 inches off the ground. Put your hands behind your head and lock your hands. Bring both knees towards your head. Role your chest the same you would in a crunch. When you role your chest bring your elbows forward. At this point straighten your body and repeat.
Hands to Toes (on your back): This is a leg raise starting with your arms straight out behind you and ending with your hands and toes meeting at the top. Keep your legs and your arms straight as you bring them together. When in the up position your lower back should be the only thing on the ground with your hands touching your toes.
There is something you need to keep in mind when you are trying to develop that stomach you have always dreamed of. Working you stomach alone will not bring about the results you desire. You will need to work your entire core and this will encompass a great deal of your body. Don't be afraid to sweat a little bit. Drink plenty of water, and cut back on the 10:00 pm ice cream.