appearance background chairs classroom classroom-furniture desk desks display displayed education educational furniture historic history image old past polished school seats wood wooden angles class furnishings high-school learning room secondary-school students study surface surfaces academic-institution backwall beams benches between-classes boys brown building children corrugated-iron corrugations covered decorated decorations design designed doors girls ground-floor interior light lines open open-space pillars posts property pupils roof roofing school-uniforms seating shelter steps whiteboard windows