Dr Ann Downton is a lecturer in mathematics education in the Faculty of Education. She has extensive experience as a primary school teacher, as a part-time mathematics and science specialist and as a mathematics consultant. Prior to her appointment at Monash University in 2016 she was a lecturer in mathematics education at the Australian Catholic University, Melbourne Campus. As part of her involvement in the Mathematics Teaching and Learning Research Centre (MTLRC) at ACU she coordinated the Contemporary Teaching and Learning of Mathematics Project (CTLM) from 2008 to 2012 inclusively. The aim of the research project was to enhance teacher pedagogical content knowledge and student learning. Supporting the numeracy leaders and developing their skills and expertise as leaders was a critical part of the school based professional learning.