The job
Walk into a room of students who don’t know you, who may feel they owe you nothing, and who are quietly deciding whether you’re worth their attention — all within a single class period.
That’s the real work of substitute teaching, or guest teaching as it’s also called. It’s rarely taught, and rarely supported.
subin was built by someone who has lived it.
“Credibility is built through action. Legitimacy is granted by those you serve.”
The principle subin is built on.
The Sub’s Handbook is twelve entries on what this job actually puts you in front of. Free to read.
The Tools
Two tools, ready the moment you need them.
How it works
Grade, subject, and how charged the room is feeling.
A clear, minute-by-minute structure for the period — built in seconds.
Lead the room with confidence — and catch the bright spots.
Those unscripted moments when a student grasps a concept in real time. They’re unpredictable, and they’re the reward. subin helps you create the conditions for more of them.
The Mission
Substitute teaching is one of the most challenging and least supported roles in education. subin exists to change that: to give substitute teachers the tools the work deserves, and to help schools close the coverage gap with the focus where it belongs: students.
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