How often is it that ADHD is a school-related problem?
Human beings have a wide variance of temperaments.
Some might not fit well into a generic system.
Round peg, square hole.
Rather than trying to change the kid, why not put them in a different environment?
Various adults prefer different places to live and different occupations; various kids probably do as well.
http://www.psychologytoday.com/blog/...ing-homeschool