Southborough, Massachusetts, from 2002 to 2011.

Tanton has worked as a presenter with Maths Week Ireland, the ABWA Infinity Program (India), the Data Math Lab (Romania); and many other international programs. He is the co-founder of the Global Math Project, which has brought innovative curriculum on the topic of place-value, polynomial algebra, etc. to over 7.8 million students and teachers from over 150 countries and territories. Tanton is also the