Dog Growling

Question
We have a two year old mixed breed.  We adopted her when she was one.  She was a stray so we know nothing about her history.  We also have a 4 year old and a 2 year old.  She was originally fantastic with the kids.  Just recently she has started growling, particularly at the 2 year old.  It seems to happen when our daughter goes for a toy that the dogs thinks (wrongly) is her's.  Not knowing exactly what to do, we usually smack her bottom and send her away.  I know she is a kind and sweet dog so I am not sure what to think of her behavior.

Thank you so much for your advice.  It is greatly appreciated.

Answer
This is a common problem,but it can also be a very dangerous one esp when children are around the dog.The best way to correct this is with a trainer,as they can show you the meathod that will work best with your dog.But in the meantime,do not give the dog any toys whatsoever-and that is the best way to protect your kids right now.