Richard Barwell is Professor of Mathematics Education at the Faculty of Education, University of Ottawa, Canada. In much of his research, he draws on sociolinguistic theories and techniques to exam...ver maisRichard Barwell is Professor of Mathematics Education at the Faculty of Education, University of Ottawa, Canada. In much of his research, he draws on sociolinguistic theories and techniques to examine the role of language in mathematics classrooms, particularly in contexts of language diversity. His work has been published in international journals in applied linguistics, mathematics education and general education.ver menos