Re: Teaching Mama
I don't really know how to help, but when my son said Mama I said "That's me! I am Mama!" and I pointed to myself.
Whenever anyone says Dada, if he is around we point to him and did the same routine. Whenever anyone said anyone's name we pointed to them.
He gets it now and asks for people by name, but I think this helped clear up the confusion because when I was alone with him a lot (I stay at home and he is an only child) he was more confused by the pointing than when there were other people around and more names.