I have had a passion for math for as long as I can remember. I have a Ph.D. in Chemical Engineering from Rensselaer Polytechnic Institute and I am now semi-retired. I teach high school math as a substitute for classes from Math 1 to AP Calculus, write math curriculum for an educational website and tutor my son and other students in middle and high school math. Recently, I have been helping students with Pre-Algebra, Algebra I and II, Pre-Calculus, ACT and SAT prep.

Throughout my long career...