My daughter is CrAzY about playing school. She literally begs us to play. This is a good thing. I've read that you should always leave the student wanting more when you quit. This makes them want to do it again later without getting them tired on the whole thing.
My daugther is still having trouble figuring out 'C' from 'U'. I've decided not to move on to the next letter until she can do this well. I went over 'UP' again and introduced 'CUP'. She doesn't really get what's going on with the words. I'll just be patient and keep bringing these up.
