There are a few things you need to remember when you introduce the puppy to the older dog:
Get a pup of the opposite sex from the resident dog.
Give the older dog a little more attention so there is no jealousy of the new addition to the household. (See And Baby Makes Four.)
Do not let the new puppy infringe on the privileges and routines of the resident dog.
By following these steps, your older dog will enjoy a new friend and your new puppy will have a great teacher.