Edit: I've been doing some searching and I'm finding some interesting stuff. I haven't looked deeply, but I found a set on the Pledge of Allegiance, which we just had in history and poetry. There are all kinds of flannel science visuals. I even found one on music with staff, notes, the whole works, which would be great for dd learning piano. She has some problems with eye tracking, so this would enlarge the lines and help her learn the notes better. I'm going to be overwhelmed. I won't know which to choose!
I know there are books with pictures, but dd will love playing with these and because she is strong visually, it should help her remember some things she has learned. It will be better than watching TV in her spare time. 
She likes to pretend she is the teacher.