My DS was (and is) the same way with homework. I've been silently protesting homework since he started school - personally, I'd like to see homework banned altogether, but that's another issue.

I don't really have any advice, but having had the knock-down, drag-outs over writing spelling words 5x (never mind that he could spell them from the get-go), I sympathize. I just think DS hated doing things that he felt were a waste of time and that he wasn't getting anything from. I don't know what the answer or magic trick is, though. Fortunately, he really doesn't have much work for home right now and what he does have is mildly stimulating.

Good luck.