Laura Black is a lecturer at the University of Manchester. Her research interests focus on pedagogic processes in the classroom and the construction of learner identities particularly in relation to mathematics. She is currently working on several projects on widening participation in mathematically demanding programmes within post compulsory education. Heather Mendick is Senior Research Fellow at the Institute for Policy Studies in Education, London Metropolitan University, and lecturer at Goldsmiths, University of London. In her research, she works across education, gender studies, sociology and cultural studies and is particularly interested in influences of popular culture on identities and aspirations. She used to be a mathematics teacher. Yvette Solomon is Professor of Education at the Education and Social Research Institute at Manchester Metropolitan University. Her research focuses on the nature of relationships between language, learning and mathematical knowledge, and between identity, participation and community experience. She is the author of The Practice of Mathematics, and of Mathematical Literacy, both published by Routledge.