Got a puppy have some questions

Shareva

We just got this little guy we named him timber. I have an 11 year old, 8 year old, 6 year old and 8 month old. My older children are ecstatic. The baby is curious but how do I teach the puppy to be more gentle with him. Right now if he starts nipping I put his toy in his mouth to chew. I'm staying close at all times. I just don't want the baby to become afraid of him because neither know better. Any suggestions will help.

P.S. I'm also making sure the baby is gentle with him teaching him to pet and not hit the puppy I just want all my kids to have a great bond with him