The Sandpaper Lesson That Went Viral and Exposed What Teens Carry Inside

poster and a crooked clock.

“We’re going to make a wall,” I said.

“A wall?” Liam repeated.

“Not a wall to keep people out,” I corrected. “A wall to show people what’s inside.”

I grabbed a box of nails and a pile of thin scrap boards.

“We’re building a display. Every one of you takes your finished block. On the rough side—the side you didn’t sand—you write continue reading …