If you can teach with nothing, you can teach anywhere.

Imagine walking into class to find there’s no textbook, no projector, no printer, and not even a whiteboard marker that works. Most teachers would panic. But the truth is, you don’t need any of it. Great lessons don’t depend on stuff — they depend on you, your students, and a few flexible ideas you can pull from your back pocket.

Teaching with no resources isn’t a punishment. It’s a return to what teaching really is: communication, creativity,...