There's a classroom on an upper floor full of molded-plastic furniture: orange chairs at shiny teal desks.There's a whiteboard at the front with "Introduction to Probability!" written all across it, dots done as circles. There are no whiteboard markers.
Basira considers strategies for checking those desks are shiny-as-in-plastic and not mal-slicked twice a week, and decides she'll lean on a book in her lap instead. She checks the chair furthest from the drains and vents and sits in it.