When observing a class, take note of the dogs; do they look happy? Relaxed? Excited to work? Is the instructor encouraging dogs and owners? Does the class seem to be run in a safe and effective manner? If you don’t feel comfortable at a particular training school, your dog won’t either, and you’ll be setting Fido up to fail. Keep looking for a school where you feel comfortable; you and Fido will do your best work this way!
Remember that training is an ongoing process. You will never be completely finished. It is important to keep working on obedience training throughout the life of your dog. People who learn a language at a young age but stop speaking that language may forget much of it as they grow older. The same goes for your dog: use it or lose it. Running through even the most basic tricks and commands will help them stay fresh in your dog's mind. Plus, it's a great way to spend time with your dog.
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: