mrritchey.com

Math teacher since 2001 — middle school through university.

About

I've been teaching math since 2001, from middle school classrooms all the way through university courses. The throughline: making math make sense, at every level.

Students

Working on the Store Percents project? Enter your five items and check your calculations before you turn them in — it runs in your browser and nothing is sent anywhere.

Open the Store Percents checker →