This summer we have not done much structured preschool. We are too busy playing outside and involving ourselves in all the fun summer activities around Lawrence. We have been spending lots of time at the library this summer, and besides the ASL videos I've been renting each week, the girls have been helping me pick out books about all kinds of animals (mammals, birds, reptiles, amphibians, bugs and fish). They both LOVE animals and they have been learning all kinds of fun facts about all of them in our books. Sometimes our reading time will lead to questions that I don't know the answer to, so it turns into an internet/youtube video search to learn more. This way even during our relaxing summer days, the girls are still learning and their brains are still being exercised, all while they're having fun and discovering new things about topics they are interested in.
We keep our library books on a designated shelf so the girls always have easy access to them.