Annisa walks with Malak to algebraic first principles.
She's carrying her plaster reusable knife mold for shop class, because she hasn't gotten a shop locker assignment yet and doesn't want to put it in her backpack where it might get bumped. She isn't planning to incant over it during all of math class, that'd be obnoxious, but she got in an hour this morning before breakfast and she's been murmuring to it periodically since.
Today is the most important day of school. It is the first day of shop class, the thing that Annisa has to be good at if she wants to live, and she'll have it with pretty much every other kid who is serious about artificing, and she needs to be memorable to all of them. After a long while of agonizing she is wearing Chantal's blue silk starred scarf, because it's striking and memorable and says 'I have resources', and the chicken has flown the coop on it not being known Annisa got some of Chantal's stuff so she might as well benefit from it. When you're trading with people it's wise to look rich.
Algebraic First Principles is in a fourth-floor classroom that's shaped kind of like a crescent, which is dumb classroom design because the seats behind the crescent can't really see the board, though this turns out not to matter as there isn't a lecture, just a textbook and worksheets.