The room bore the scars of its history. The desks were scarred topography. Deep grooves spelled out names of graduates who now had children of their own. "JASON + LISA '04" was carved next to a crude calculation that had been scratched out in frustration. There was a burn mark on Lab Station 3, a permanent record of the day someone left a Bunsen burner on too high. These were not acts of vandalism; they were desperate attempts by transient occupants to leave a mark on a space that would outlast them. We moved through 70X; 70X did not move for us.
Then there was the silence. Classrooms have different kinds of quiet. There is the terrified quiet of a test, the exhausted quiet of a film strip, and the focused quiet of a lecture. 70X specialized in the "awkward quiet"—the heavy, pregnant pause after a question was asked that no one knew how to answer. In those moments, the room seemed to hold its breath. The dust motes dancing in the sunbeams were the only things moving. The pressure of the silence forced you to look at your desk, tracing the carvings of initials and crude drawings left by generations of bored teenagers who had sat in that exact same spot, feeling the exact same mixture of anxiety and apathy. classroom 70x
If you mean a (common size), here's a proper setup guide: The room bore the scars of its history