Tracy Helliwell
Tracy Helliwell is an associate professor of mathematics teacher education at the University of Bristol, United Kingdom. Her research interests include mathematics teacher education and professional development; mathematics teacher learning and identity; curriculum design in school mathematics; mathematics teaching for sustainable futures; and mathematics teacher educator learning and expertise. She is currently an associate editor of the journal For the Learning of Mathematics.
Sean Chorney
Sean Chorney is an associate professor of mathematics education at Simon Fraser University in Burnaby, Canada. His research interests include mathematising social and ecological issues, the use of digital technology in learning mathematics, and exploring the expertise of MTEs. He is an associate editor of the International Journal of Science and Mathematics Education and the senior editor of Vector, the teacher journal of British Columbia, Canada.
Olive Chapman
Olive Chapman is a professor in mathematics education at the University of Calgary, Canada. Her research interests include mathematics teacher thinking, practical knowledge and learning; mathematics and problem solving knowledge for teaching; and mathematics teacher educator knowledge and learning. Her past professional service include Editor-in-Chief of the Journal of Mathematics Teacher Education and member of the Board of Directors of the National Council of Teachers of Mathematics.