I don't know what they're called, but those little scooter boards (upside down, next to the tote of basketballs in the center).
When you saw those were out, PE class was gonna be lit.
Also, I'm pretty sure our school used them to wheel the trash cans around when not used in class. We were a poor school, so it's possibly also the opposite of that.
It brought back many auditory memories of these things looking up a picture of the ones like we had. Looks like they have molded plastic ones now...with handles! Crushed fingers build character! 😆