we're homeschoolers, and typically we try to find something educational about EVERYTHING we do, lol!
when it comes to DLR, there are several things that i think can be educational. the abraham lincoln attraction (great moments with president lincoln) can be extra educational if you first look up info online, or check out a couple of books at the library before your trip, on lincoln, the photographer mathew brady, and the gettysburg address.
you may also want to look up a little something about the california redwoods and the golden gate bridge, before your trip, since the kids will see representations of both while at california adventure. also, familiarize yourself with photos of yosemite falls, because you'll see it on Soarin'!
and while we're on the subject of Soarin', try to fit in some time before your trip to read and learn about amelia earhart and/or the wright brothers, because as you wait in line there are photos and information about them.
look up the swiss alps, as well as show your kids on a globe where they are, and then find the peak that was modeled after the matterhorn!
have they spent any time learning about people from different parts of the world?....ireland, india, hawaii? these cultures and more are represented in the IASW attraction. you can likely even find words and music of the song online in different languages....learn one before you go!
do a mini unit-study of new orleans before your trip....showing your children where it is on an atlas and showing them photos of bourbon street and videos of new orleans style jazz on
youtube. learn about mardi gras (and mardi gras beads!), because the kids will totally tie in what they've learned while in new orleans square.
i'm sure i can think of more, lol. so if you want more ideas, let me know! hth!
