A construction crew working on a school in Oklahoma City made a startling discovery earlier this month. Behind the walls at Emerson High School, they found old chalkboards containing class lessons, written in chalk almost a century ago. And chalk drawings, in remarkable condition.
Math teacher Sherry Read’s classroom is a total mess. Light fixtures dangle from the ceiling. The floor has a layer of dust. Down the hallway, workers make a racket in another classroom.