Congrats on adding a member to your family soon! You will soon figure out if your puppy is play motivated, food motivated, or both. This will really help knowing when training. Praise goes a long way! Sit is a very important thing to teach puppy when you first bring them home. I'm not sure how old your boys are, but there is a good book Puppy Training for Kids: Teaching Children the Responsibilities and Joys of Puppy Care, Training and Companionship. It works for adults too 🙂 I it has everything from Puppy supplies, first year, grooming, vet visits, housetraining, socialization, how dogs communicate, avoiding puppy trouble as well as training.

I'm sure, just like your toddler, keeping puppy on a schedule and structure helps tremendously. Have fun and keep us posted on how everything is going with the new addition!