Colin Foster is an Assistant Professor at the Centre for Research in Mathematics Education in the School of Education at the University of Nottingham, UK. Previously, he taught mathematics for 12 years in secondary schools in the UK. He is a member of the Association of Teachers of Mathematics, the Mathematical Association and the British Society for Research into Learning Mathematics. He is a Chartered Mathematics Teacher, a Fellow of the International Society for Design and Development in Education and a former co-editor of the journal Mathematics Teaching.
See www.foster77.co.uk for more details.