Brantina Chirinda is a lecturer of Mathematics and Mathematics Education in the Faculty of Education at Cape Peninsula University of Technology (CPUT), a research associate at the University of Johannesburg (UJ) and a visiting research fellow at the University of California at Berkeley. Dr Chirinda holds a PhD in Mathematics Education from the University of Witwatersrand. She is interested in the teaching and learning of mathematics in contexts of disadvantage, specifically focusing on mathematical problem solving and equitable access to content in the mathematics classroom. She has taught Mathematics and Mathematics Education courses at various Southern African institutions for over 20 years. She has published several conference proceedings, book chapters and articles in accredited local and international journals. She has presented her work at several national, regional, and international conferences. Dr Chirinda leads a community project, Southern African Mathematics Empowerment Network (SAMENET), envisaged to empower female mathematics teachers and learners in contexts of disadvantage.Kakoma Luneta is an Associate Professor of Mathematics Education in the Faculty of Education at the University of Johannesburg, South Africa, where he has been a faculty member since January 2005. Dr Luneta holds a PhD in Mathematics Teacher Education from the University of Witwatersrand and a Master's in Mathematics Teacher Education from the University of Sussex in England. His research interest is in Mathematics Teacher Education at Secondary and Elementary school; Mathematics/numeric cognition, and Professional Development and Mentorship of Mathematics Teachers. He has taught mathematics and physics in various Northern and Southern African countries, the UK and the US. He has supervised to completion several masters and doctoral students from Sub Sahara Africa, Greece and South Korea. He has published four books, over 30 book chapters and articles in accredited journals. DrLuneta was recently appointed a Visiting Scholar at the University of Cambridge Centre for Neuroscience in Education (CNE) and was once a Visiting Associate Professor of Mathematics Education at the University of British Columbia in Canada and a Visiting Scholar at Stanford University in the US. He has also been an invited Keynote Speaker at various academic meetings.Alphonse Uworwabayeho is a senior mathematics lecturer at the Early Childhood and Primary Education department in the School of Education, the University of Rwanda-College of Education. He is a member of the African Centre of Excellence for Innovative Teaching and Learning Mathematics and Science (ACEITLMS) research committee based in the UR-CE and commissioner on mathematics education for the African Mathematics Union (AMU). His research interest includes integrating ICT in the teaching and learning of mathematics and teacher professional development on active learning.