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2014-2016: Professional development course Mathematical Thinking Activity
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2012-2013 Universiteit Utrecht: teacher 'Communiceren in de wiskunde' in the Bachelor's Program Mathematics
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2012 Utrecht University: teacher of the course ‘Introduction to science communication and education’ in the Master Programme ‘Science Education and Communication’
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2011-2012 Utrecht University: designer and teacher of the Advanced Topics courses ‘Queuing theory’ and ‘Calculus’ in the Impome Master Programme.
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2010-2012 Utrecht University: designer and teacher of the course ‘Designing science communication and education’ in the Master Programme ‘Science Education and Communication’ (in collaboration with Dirk-Jan Boerwinkel)
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2009 Hogeschool van Arnhem en Nijmegen: designer and teacher of the master course ‘Mathematics didactics’
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2007-2010 Utrecht University’s Junior College: designer and teacher of the NLT-certified module ‘Clear drinking water’ (in collaboration with Gjalt Prins)
- 2006-2007 Utrecht University: designer and teacher of the master course ‘Mathematics didactics’
- 2006 Senior Qualification Educational Designer (SKOO), Utrecht University
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2005 Université du Québec à Montréal, Canada: designer and teacher of the masters course ‘Informatique dans l’enseignement des mathématiques’
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1984-2000 Hogeschool Interstudie, Nijmegen: designer and teacher of several courses in probability and statistics, calculus, and mathematical modeling (bachelor level)
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1983-1984 Twente University, Enschede: several courses in probability and statistics (bachelor level)
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1980 Thomas à Kempis College, Arnhem: secondary mathematics teacher