DD is the same way--needs something to fidget with and she needs to move around a lot (if she had her way she would pace the room while the teacher is talking). She says that moving actually helps her to focus.
I think that any psychologist would recommend putting a kid with ADHD at the correct conceptual level, with accommodations/modifications made for behaviors related to the ADHD. So if he does a test and all of his errors are related to rushing or being sloppy, that should not hold him back, although I suppose there is a limit to what is acceptable. Our school allows kids to skip material if they pass the end of the year test at 85 percent or above.
