I keep it simple when I teach 100-shooters the greenside bunker shot. The sand can be intimidating to higher-handicappers, but they have to overcome that fear. When you address the ball, stand with your body aligned slightly left of your target, and open the face of your sand wedge a little. Now make a normal swing. Your only thought should be to throw the sand that's under the ball out of the bunker. This simple idea gets you to accelerate through the ball and finish the swing.
I know it's a short shot, but that acceleration and clubface rotation are so important. You can't throw the sand out if you hold the face open -- in fact, you just might dump it on yourself. To feel the correct action, try the right-arm-only drill above.



















