Contact Target Training
This is another really good video from ExpertVillage. Target training is an easy way to get your dog to do contacts reliably, since there is no ambiguity. Since dogs don’t understand the concept of the ‘yellow zone’, giving them something definite to touch teaches them exactly what you want! When you phase out the target, the dog learns that its’ the action of touching the ground you wanted at the end of the contact zone. Check out this post here for more on target training!