Merrilyn Goos is Professor of STEM Education, University of Limerick, Ireland and is an internationally recognized mathematics educator. Vince Geiger is Professor of Mathematics Education and STEM program director within the Learning Sciences Institute Australia at Australian Catholic University. Shelley Dole is Professor and Head of the School of Education at the University of the Sunshine Coast. Helen Forgasz is a Professor Emerita in the Faculty of Education, Monash University. Anne Bennison is a Lecturer in the School of Education at the University of the Sunshine Coast and recently completed her doctoral studies identifying ways to support teachers to embed numeracy across the curriculum.