Peter Gates teaches at the University of Nottingham's School of Education and has previously taught at the Open University and the University of Bath. Prior to this he worked as a mathematics teacher for thirteen years, including four years as head of department at a Milton Keynes comprehensive and a spell in Moçambique. He has edited and written numerous books and articles on teaching mathematics and is currently interested in how practices in schools in general, and mathematics education in particular, contribute to social exclusion. Peter is a member of the International Committee of the International Group for the Psychology of Mathematics Education. Peter is a member of the International Committee of the International Group for the Psychology of Mathematics Education.