My son's new second grade teacher says she's been having problems with my son Erik arguing with her, and not following directions. It's odd because at home and in other situations he never argues with me, and follows directions very well. He didn't seem to have any problems with arguing in first grade, although he did have some problems with getting upset easily. (He's very sensitive.) I though most kids are supposed to be angels for their teachers and act up at home. But not mine. Has anyone experienced similar problems?