D.G.
My Grandma was a Chiropractor. She used to have a machine that was used for Dyslexia where you would simulate crawling (like a rowing machine, only for crawling); I think what I've seen lately are "climbing" equipment at gyms. It is the motion (like crawling) of using the left leg / arm and right leg / arm motions. If you can get him to crawl around the house, that is what the idea would be (forgot if 8 years olds will do this kind of stuff!!!). Also, they used to use the squeeze balls so when a thought was difficult, they squeezed the opposite side (if they were right handed, they squeezed ball with left hand; if left handed, squeeze with right hand). That's all I remember - I thought it interesting many years ago when I worked in her office....