I am a Senior Lecturer in Computing at the Open University. I have led the development of several digital skills-related online resources including the "Digital Thinking Tools" badged open course and the OpenLearn resource "Introduction to Computational Thinking". I'm leading a collaborative project (Open University, Cambridge, Sheffield and Toshiba) entitled "Opening Up Minds: engaging dialogue generated from argument maps" and have investigated the use of online argument mapping activities for the development of critical thinking skills. I am a Senior Fellow of the Higher Education Academy.