Last semester (Fall 2011), I taught Math 205: Topology at Duke.
Right now (Spring 2012), I'm teaching Math 49S.02, a First-Year Seminar called The Emerging Science of Complex Data.
In Fall 2010 I co-taught (with Herbert Edelsbrunner) a course
on Computational Topology at IST Austria.
In the past, I have also taught many different flavors of Calculus and Linear Algebra.
