A student told me one time, “yeh yeh. Ya can’t divide by zero. No one knows why, but it’s a rule.” Now hold up just a minute! Nobody knows why? Y’all tell him why…..

What AI tools are you using to support curriculum and guided learning? Assessment? Do students still work problems by hand? Let me know.🩷🧡

When I think about things I find interesting in math, I keep circling back to 1. In some ways, it’s the simplest number—just one thing. And yet, 1 wears so many disguises. The invisible 1 trips students up all the time: in 3x + x, in x^1, in coefficients that are “there but not written.” When we simplify fractions, rationalize denominators, or even dividing by a complex number, we handle the problem by multiplying by one—just not the obvious one. We choose a form of 1 that changes everything while changing nothing I’m curious—what’s a concept like this for you? Something small or “obvious” that turns out to be doing a ton of hidden work in math?