Though all dogs should know all four basic commands, sit will be the first you might work on in a training class. Once your dog knows sit, he can easily learn to stay put with the ‘stay’ command, he could lie down with the ‘down’ command, and he could move forward to you with the ‘come’ command. Sit is a foundation for the basic commands your dog will need to know for obedience training. Sit is an easy command to teach. You will need to practice with lots of repetition and commitment. Be prepared to reward your dog for his positive behavior when you ask him to sit. Because your dog might not have the attention span to learn sit in one session, you may need to have several sessions over a few weeks to teach sit. Be sure to use sit every day to keep your dog well-rehearsed.