I am a Research Fellow in the Mathematical Institute at Oxford University, as part of the Quantum Mathematics and Computation research group. I am on leave from my position as Lecturer in Mathematics in the Department of Mathematical Sciences at Stellenbosch University, South Africa.
My research is about low-dimensional topology and mathematical physics, with a focus on topological quantum field theory (TQFT).
I enjoy teaching. I am interested in all the various teaching methods, from "chalk and talk" to using technology. Here are some videos of me explaining a limit problem from James Stewart's Calculus, or the memo for a tutorial test. Here is a sample exam I set for Multivariable Calculus.
I try to keep classes interesting by adding bits and bobs of enrichment. For instance, illustrating the difference betweeen rational and irrational numbers by going over Pyhtagoras' original proof of the irrationality of √2, or by learning about the difference between equal temperament and Pythagorean tuning in music. Or, learning about conic sections using Mathematica demonstrations.
Courses given at the African Institute for Mathematical Sciences:
Some blog posts in recent years: