Often, the sit command will be one of the easiest for your dog to learn first. Next, you can train your dog to lie down. At the same time, work on teaching your dog to stay. In addition, your dog should be trained to come when called as soon as possible. This is one of the most important fundamental commands. Once your dog has mastered these dog obedience basics, you can move on to fun tricks and advanced commands.
A training class is not there to train your dog. Its purpose is to teach you to train your dog so you will need to be committed to train your dog for short sessions (5 minutes) several times a day rather than just simply turn up for classes! This little bit of training everyday will be repaid with a lifetime of living with a well behaved dog. You will also learn to avoid problems before they begin as well as receive help to overcome any that you already have with your dog.