Claire Mooney is a Lecturer in Mathematics Education within the School of Education at the University of Southampton. Alice Hansen is an educational consultant. Prior to this, Alice worked in higher education as a principal lecturer in mathematics education and as the programme leader for the Primary PgCE with QTS programme. She has worked in a wide range of primary schools in England and abroad. Alices research interests include early years and primary childrens mathematical thinking. Reg Wrathmell is Senior Lecturer in Mathematics Education at King Alfreds College, Winchester. He has extensive experience as a mathematics consultant and as a provider of in-service courses. Sue Fox has had extensive experience of teaching all ages from Reception to Year 6.

She is currently Senior Mathematics Lecturer at St Martins College, Carlisle. Lindsey Ferrie is a primary school teacher in Carlisle.