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

place in the building where friction was allowed.

I felt anger rise—hot and clean.

Then I remembered what I’d told them.

Friction creates heat.

Heat changes things.

“Today,” I said, “we build something the whole school can’t ignore.”

Jason frowned. “Like what?”

I turned to the far wall—the cinderblock wall that had been bare for years except for a faded safety continue reading …