Helen founded and led Ark’s Mathematics Mastery programme to empower and equip teachers to bring research insights to classroom practice. The programme has evidence of significant impact from an Education Endowment Foundation randomised controlled trial. It has built a national collaborative partnership of over 500 primary and secondary schools and underpins the Maths Hubs teaching for mastery approach. Helen has over a decade of experience as a maths teacher and leader. She holds a PhD in maths education, has advised government on curriculum and assessment and has written several books on evidence-informed teaching. She is Dean of Maths Excellence with Purposeful Ventures and a member of the Royal Society’s Advisory Committee on Mathematics Education. Helen co-led the Maths Horizons Review with David Monis-Weston.

Eluned specialises in designing and delivering large-scale national and international programmes, including Oak National Academy’s curriculum resources, Teach First’s Training Programme, the English national curriculum, and a performing arts collaboration between The Juilliard School and Nord Anglia Education. Her work focuses on practical implementation: building resources, professional development and delivery models that help teachers adopt effective approaches at scale. Eluned holds an MEd in education leadership and management. Beyond her education roles, she sings with the CBSO Chorus and is a trustee of Services for Education, which provides music education and education advisory services in Birmingham.

Camilla has carried out research into mathematical learning for over 20 years. Her research aims to uncover the cognitive processes involved in mathematical thinking and the implications of this for mathematics education. This work particularly focuses on the connection between fluency and conceptual understanding, mathematical learning difficulties and dyscalculia, and the role of executive function skills and spatial reasoning in supporting mathematical thinking. She is Professor of Mathematical Cognition at Loughborough University and Director of the ESRC Centre for Early Mathematics Learning. She is a member of the British Society for Research into Learning Mathematics (BSRLM) and the Early Childhood Maths Group (ECMG).

Ed has worked in education for over 20 years across primary and secondary schools and teacher training both in the UK and abroad. He has a PhD in maths curriculum design and is the author of several books on problem solving and maths subject knowledge. Ed has overseen the design and development of a fully resourced maths curriculum from Key Stage 1 to 4 as the maths lead at Oak National Academy. He is a trustee of Axiom Maths.