Prof. Dr. Hans-Stefan Siller is full professor for didactics of mathematics at the Universität Würzburg, Germany. He researches topics of mathematical modeling, especially in interdisciplinary teaching and learning settings, includingeducation for sustainable development as well as STEM topics. His research includes both quantitative and qualitative methods of knowledge in professional research connected to school practice.
Prof. Vince Geiger is Director of the STEM in Education Research Program in the Institute of Learning Science and Teacher Education at Australian Catholic University. His work is focused on the enabling role of mathematics within the STEM disciplines -- driven by an awareness that knowing and using mathematics confidently is key for career prospects and the empowerment of an informed citizenry.
Prof. Gabriele Kaiser is Full Professor of mathematics education at Faculty of Education, University of Hamburg. Her research includes modelling and applications in school. She is Editor-in-Chief of ZDM Mathematics Education. She was convenor of the 13th International Congress on Mathematics Education (ICME-13) in 2016 at the University of Hamburg with 3,500 participants. She is Current President of the International Community of Teachers of Mathematical Modelling and Applications (ICTMA).