This volume brings together recent research and commentary in secondary school mathematics from a breadth of contemporary Canadian and International researchers and educators. It is both representative of mathematics education generally, as well as unique to the particular geography and culture of Canada. The chapters address topics of broad applicability such as technology in learning mathematics, recent interest in social justice contexts in the learning of mathematics, as well as Indigenous education. The voices of classroom practitioners, the group ultimately responsible for implementing this new vision of mathematics teaching and learning, are not forgotten. Each section includes a chapter written by a classroom teacher, making this volume unique in its approach. We have much to learn from one another, and this volume takes the stance that the development of a united vision, supported by both research and professional dialog, provides the first step.

Dr. Ann Kajander is an Associate Professor of Mathematics Education in the Faculty of Education at Lakehead University, Canada. She has also taught mathematics at both the secondary and post-secondary levels, and developed the Kindermath elementary enrichment program. Her recent book, Mathematical Models for Teaching, supports the development of specialized mathematics knowledge for teachers. Ann was also the co-editor of The Mathematical Education of Elementary Teachers. She sits of the Advisory Editorial Boards of the International Journal of Science, Mathematics, and Technology Education and the Journal of Global Education and Research. Ann is the 2014 winner of the Margaret Sinclair Memorial Award for Excellence and Innovation in Mathematics Education, a Canadian national-level award. Dr. Jennifer Holm is an Assistant Professor of Mathematics Education in the Faculty of Education at Wilfrid Laurier University, Canada. Her research on using professional learning groups to support teachers, in particular those who are working with the transition from elementary to secondary school, was recently published in a book, Improving mathematics teaching through professional learning groups. She serves on the Steering Committee for the Psychology of Mathematics Education, North American Chapter. Jennifer is currently the editor of the Proceedings for the Annual meeting of the Canadian Mathematics Education Study Group. She received the Recognition Award for Theses and Dissertations on Teacher Education from the Canadian Association for Teacher Education in 2014 for her doctoral work. Dr. Egan J Chernoff is an Associate Professor of Mathematics Education in the College of Education at the University of Saskatchewan, Canada. (At the time of publication) Egan is the English/Mathematics editor of the Canadian Journal of Science, Mathematics and Technology Education(an associate editor of the Statistics Education Research Journal and the Book Reviews Editor of The Mathematics Enthusiast). He sits on the Board of Directors for the learning of mathematics; is an editorial board member for The Variable: Periodical of the Saskatchewan Mathematics Teachers' Society and Vector: Journal of the British Columbia Association of Mathematics Teachers; and, is the former editor of vinculum: Journal of the Saskatchewan Mathematics Teachers' Society. Follow him @MatthewMaddux.