I am new to all of this, and only have a DS4; but from all I've read on this site (and answers to my questions), is it possible that your child didn't feel like he fit in, has been made to feel uncomfortable with his giftedness at school, so didn't like any reminders of the school (with his homework), and just needs a break to recoup and regroup? These are rhetorical questions. My DS4 told me that he doesn't want to be smart two weeks ago; but all of a sudden, he is interested in learning again now that he's had a break from school, and seemed to be getting bored. I started introducing him to some new cool computer learning games, etc.

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Mom to DS6