In the twentieth century, formalized dog training originated in military and police applications, and the methods used largely reflected the military approach to training humans. In the middle and late part of the century, however, more research into operant conditioning and positive reinforcement occurred as wild animal shows became more popular. Aquatic mammal trainers used clickers (a small box that makes a loud click when pushed on) to "mark" desired behavior, giving food as a reward. The change in training methods spread gradually into the world of dog training. Today many dog trainers rely heavily on positive reinforcement to teach new behaviors.
Agility first appeared in England in 1978, as essentially a half time show at Crufts. The creators based the demonstration on horse jumping competitions, intending to show off the dogs’ natural speed and agility. Dog owners and trainers looking for something new to do with their pets pricked up their ears and said, “Hey, MY dog could do that.” Thus the sport was born.
Step one of each run is the walkthrough. If you’ve ever been to an agility trial and seen a group of people walking around in the ring with one arm out and muttering commands to an invisible dog, you’ve just witnessed the walkthrough portion of the trial. These people may look three fries short of a Happy Meal, but they’re actually hard at work memorizing the course and plotting out how they will run it.
Unless you plan to keep your dog outdoors--and few of us do because it's not recommended--you'll need to teach your dog where to eliminate. Therefore, house training (also called housebreaking or potty training) is one of the first things you need to work on with your dog. Crate training can be a very helpful part of the training process. This includes house training as well as many other areas of training: