I completely second the visual spatial idea. I am a huge v/s person and so is my DH and DS. If you tell me to do x, y then z. I won't make it past x. I might not even find x on the page. Now if you show me z and tell me to get there, I am done in no time. I noticed that "teaching" my son anything is painful. Show him what he needs to know, give him the material and walk away and he has it mastered. Perhaps you could "test" that out on your son? I also second the sensory issues. I pmd you on this one. I don't know what it is but I swear deep thinkers and inability to verbalize what's up there in your head go hand-in-hand and don't even ask us to translate it onto paper. Oh boy!
