Don't be a jerk, he's learning from scratch. Your worlds history isn't like ours right? Your moon is alive, and there's dragons. [ Imagine if history books had dragons. ]

He can't be getting all B's... [ She's suddenly looking at at all the walls. ] Well, um, he's not getting anything better then a B. Maybe something okay in art? He won't let me look at his math grade, even though I worked so hard. You have to help me, Ventus-san! Scold him properly!

[ Did she explain derivatives properly? ]