Best K-12 blogs about where teachers put their attention.

Marcus Luther · Weekly

Started by two teachers on opposite sides of the country, The Broken Copier is a Substack and podcast built on a simple idea: teachers talking about teaching. Marcus Luther, now in his fifteenth year in high school classrooms, walks through real lessons week by week — the analogies that land, the October slump, the AI conversations happening in front of him — while the podcast centres teacher voice over expert pronouncement.