The classroom isn't huge, but an entire wall of it is taken up with an enormous blackboard, the kind that has multiple rolling panels set into tracks. Chalkboard compasses, erasers, and sticks of chalk in various colors sit in trays nearby. Rows of desks face towards the blackboard and away from the door.
Alyona always liked math, but she also was always able to go talk to her uncle the mathematician any time she didn't understand something. Not having that safety net makes her nervous. She channels her nervous energy into checking behind every blackboard panel for mals.