My son’s a high school freshman, but he’s still letting his feelings about his teachers affect his work. He’s got one teacher he’ll do anything for, even artwork, which he’s never liked. But there’s another that he doesn’ t like, and when he’s doing an assignment for her he always says he has no ideas, he doesn’ t remember what he’s learned, etc. etc. How can I convince him to do his best no matter who it’s for?