Allen Leung obtained his PhD in Mathematics at University of Toronto and is Professor of Mathematics Education at Hong Kong Baptist University.  His research interests include geometrical reasoning in Dynamic Geometry Environment, development of mathematics pedagogy using variation, tool-based mathematics task design, and integrated STEM pedagogy. Professor Leung has published in major international mathematics and STEM education journals, books, and conference proceedings. He was involved in ICME 11, 12 and 13 as a Topic Study Group organizing member, a presenter of Regular Lecture and a member of a survey team. He made contributions to four ICMI Studies and was an IPC member of the 22^nd ICMI Study: Task Design in Mathematics Education, co-edited the Springer book “Digital Technologies in Designing Mathematics Education Tasks - Potential and Pitfalls (Mathematics Education in the Digital Era Book Series)”, and is an Associate Editor of the Springer journal Digital Experiences in Mathematics Education.

• Dynamic interactive digital environment in Mathematics pedagogy
• Cross-disciplinary (e.g. STEAM) pedagogy
• Tool-based task design in Mathematics education
• Development of variation theory in teaching and learning
• Argumentation and proof in school Mathematics