Can anyone recommend materials equivalent to the 9-12 book list as well as other history books that would be appropriate for 3rd and 4th graders to learn about our constitution and the historical truths of our Founding Fathers? I've got two boys I want to start home schooling part time on the side of their public school education; they're starting to ask questions, and I want to feed them with the appropriate information, because I know they're not going to get it in school... any direction would be greatly appreciated!