this is a place that will let you earn your diploma at home. I know kids at our local hs used it to graduate. I also wanted to let you know that if you child is thinks they can pass the test without the classes, you can take the test without attending the classes. The only downside is that if you do take the test without the classes, there is a delay before you can take the test again.
http://www.americanschoolofcorr.com/