To answer your question about what "lessons" we were going to do. I was thinking of a little lesson for each park. I'm going to have them pick an animal that we will find in AK and a country we will see in Epcot and we're going to do a little research project! Sam is almost 6, so with her being so young, she can print out a lot of pictures and she is beginning to spell and write.
I think for MK we're going to learn about Walt himself! The kids are always asking me questions about Walt, so ... perfect!
Not sure about DHS yet, haven't thought about that one. But I figure seeing how we have all summer and we'll have hot days that we're just hanging out in the AC this will be a very exciting thing to do. And they'll be reading and writing, so it's a win-win!