Not only was the puppy to be trained, but so was another particular human. Which training method to use, some use food reinforcement, while others only use verbal praise. Once you decided on the method, than you must find the school or instructor and start checking their references. Then comes the cost and scheduling. After all the dog may learn a few things at class, but most of the training, is teaching the owner how to train the dog.
Classes provide the dog with a great opportunity to show the owner who is the real boss.
Then you go to class, and he acts like he has never herd that command before. You say come, and he runs off. You say sit, he lays down. How to use a pinch collar. This includes putting it on and taking it off.