Hi, Liza!
My daughter is 5 months now and she is fond of watching flashcards with sounds!
Sometimes when she is with my husband, I'm doing smt on computer, they come near to me and she looks at the monitor with interest trying to see smt new. I don't show her ppts everyday, may be 3-4 times in week, but she is waiting, I know, because she can skip pages in real magazines and watch on them. She cann't sit yet. And you baby is older and it's harder to catch her attention, but I think yu should add more sounds into ppt, may be special effects.
I've read about zaitzev's cubes, and this method of teaching is base for traditional school teaching method.
My father 23 years ago learnt me to read at 3 y.o. by using diafilms, a kind of russian soviet flashcards
))
And now I think we can use the same method but with new technologies.
Here on brillkids I'm interested with posts of TEACHING MY TOODLERS, may be his posts will interest you too.
See you here!