Dr 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 Masters in Mathematics Teacher Education from the University of Sussex in England.  His research interest is in Mathematics Teachers 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 as published four books, over 30 book chapters and article in accredited journals.  Dr Luneta was recently appointed a visiting Scholar at the University of Cambridge Centre for Neurosciencein 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 also been an invited Keynote Speaker at various academic meetings.