The students sometimes sit on the ground (it's freezing in the winter and there's no central heating, so I'm always feeling a bit bad when I get to sit in a chair) but the teachers sit in chairs. Did your school have the teachers on the ground too?

Actually, now that you mention it, I think a couple of times, I sat on the floor because it was one of those short assemblies about sports clubs, this and that. The teachers generally stood and watched the students, but I generally plopped to the ground and sat.