I came across this entry in the Utne Blogs. (Disclaimer: I've never before now heard of Utne or know what it's all about.)
The thing that caught my eye was where the blog author says "The problem was that much of the science was backwards. In good science, you start with a piece of evidence and try to find a truth. With creationist science, you start with a truth (the Bible), and try to find the evidence."
Isn't homeschooling similar to what the polygamist sect in Texas was doing? Specifically, they found a place of extreme isolation, rounded up all their people, took them there, and kept them away from anyone else on the "outside" who may plant a seed of doubt or skepticism in their minds.
That's kinda scary, and not exactly what I'd call providing a real education.