Scientific Learning (Score 2, Informative)

If you're really serious about this, you should check out the software from Scientific Learning. One area where they've been very successful is with helping children with dyslexia and other special needs.

Here's a relevant link:

http://www.scilearn.com/results/student/specialed/ main=home/rl/

Pretty interesting company, actually... educational software based on brain research on how people *actually* learn.