Just a couple ideas from the top of my head.
1. Keep your upper body on top of the board. You want to maintain proper squat posture, so your knees do not move past your toes. It helps to imagine lines coming straight up from the heel and toe edges, and you don't want your butt sticking out past the heel edge, or your head/torso sticking out past the toe edge. This keeps your weight on top of the board, so that it is less likely to slip from under you.
2. Remember to initiate the first half of each turn with your front foot, and follow through on the last half with your back foot.
3. Adding some forward lean in your highbacks, or physically moving your bindings toward your heel edge, will give you more leverage and increase the level of control you have in your heel side turns.
Remember to actually carve, the board needs to be tilted up on its edge and it will feel like your speed is increasing. It will feel very smooth like gliding while ice skating, and less like scraping or skidding down the hill, which is a skidded turn. You can look at your tracks in the snow on a groomed trail, and if the trail you make is thin and only a few cm wide, you were carving. If it is wider and your hear scraping during the turn, it is not a true carved turn.
Last edited by BigmountainVMD; 11-13-2013 at 11:18 AM.