# Christopher J. Sangwin

Professor of Technology Enhanced Science Education

 School of Mathematics The University of Edinburgh Official homepage

In mathematics we do not appeal to authority, but rather you are responsible for what you believe.
Richard Hamming, American Math Monthly, vol 105 no 7.

It is not knowledge, but the act of learning, not possession but the act of getting there, which grants the greatest enjoyment.
Karl Friedrich Gauss, 1808

On definitions in mathematics. (Goold et. al., (1906) Harmonic Vibrations)

## Research

I am Professor of Mathematics Education as part of the Centre for Technology Enhanced Science Education. My research interests include (i) automatic assessment of mathematics using computer algebra, and (ii) problem solving using Moore method and similar student-centred approaches. A practical outcome of this is the STACK computer aided assessment system.

## Software Projects

 STACK STACK provides a question type for the Moodle quiz which is specifically designed to enable sophisticated computer-aided assessment in Mathematics and related disciplines, with emphasis on formative assessment. DragMath DragMath is a free "drag and drop" equation editor, written in Java. The editor lets users build up mathematical expressions in a traditional two dimensional way, and then output the results in a correctly formed syntax.
 Euler's sum One of my favourite results in mathematics is the following: $1 + \frac{1}{4} + \frac{1}{9} + \cdots = \frac{\pi^2}{6}.$ Leonard Euler's wild and brave explanation is given here. The game of Hex Hex is a connection strategy game for two players. It is simple to learn, great fun to play and has some deep mathematics behind it. Some hex resources.