Zhenzhen Miao is Assistant Professor in Mathematics Education at Jiangxi Normal University, China. She is interested in the development, equity and quality of mathematics learning and teaching worldwide. Zhenzhen teaches both initial teacher education (ITE) and research courses in Mathematics Education to both undergraduates and postgraduates. She is an active contributor to mathematics teachers’ professional development (PD) at local schools, provincial teaching research conferences and the National PD Programme for Rural Teachers in China. Her research focuses on mathematics learning and teaching as well as mathematics ITE and teacher PD in the local, national and international contexts. Whilst currently based in China, Zhenzhen has maintained a genuine interest in understanding education through both national and international lenses since her Masters and PhD studies at the University of Southampton, UK.

Christian Bokhove is Professor in Mathematics Education at the Southampton Education School. From 1998 to 2012 he was secondary mathematics and computer science teacher in a secondary school in the Netherlands. In 2012 he took up a post at the University of Southampton. In his work, he specialises in mathematics teaching, textbook and technology use, international comparisons, and computational research methods. His work is collaborative in nature; rather than just look at mathematics education from a distance, he likes to collaborate with practitioners, so they can benefit from research, and researcher can benefit from being rooted in classroom practices.

David Reynolds, CBE, was Deputy Pro Vice Chancellor, Head of Department and Professor of Education at Swansea University, United Kingdom. From 2021, he was Distinguished Professor of Education at Hangzhou Normal University, China. He has published extensively in the areas of educational effectiveness, comparative education and educational policy (over 20 books, 150 articles) and has lectured, consulted and/or researched in over 70 countries.

Charalambos Y. Charalambous is an Associate Professor in Educational Research and Evaluation at the Department of Education of the University of Cyprus. His research interests include teaching effectiveness with a particular focus on understanding the work of teaching and measuring teaching quality. He is also interested in teacher initial training and ongoing professional development. He is currently a member of the OECD Teaching and Learning International Survey (TALIS) 2024 Questionnaire Expert Group and Teacher Knowledge Survey Expert Group. He led or participated in a number of European and national projects on educational effectiveness and improvement. He has authored or co-authored several papers in different peer-reviewed journals.