I too was a former gifted student. It's been so long since the tests that I can't remember precisely what I excelled at, but I remember on Wednesdays my mom would take me to a different elementary school to be in an all-gifted class for the day, and when it was over I would go back to my old school to finish up learning there. It helped to challenge me academically, while still letting me learn subjects and hang out with all the friends I had made at my old school.