My dd does the exact same thing. She's rather convinced that she's bad at math, which is the one subject that has required work post-skip. I think that she's still feeling pretty confident about her language arts abilities b/c she's performing we'll beyond the honors expectations in that area and her smart friends still ask her to do the write ups and presentations on group projects b/c she'll do the best work.

Study Strategies for Accelerated Learners