- Mathematics education in the classroom
- Technology use in schools
- Research methods
- Computational Social Science
Accepting applications from PhD students.
Christian was a teacher of Mathematics and Computer science, and Head of ICT at a secondary school from 1998 to 2012 in Zaandam, in the Netherlands. During these years he participated in and led projects on Maths and ICT (wisweb, Galois, Sage).
In 2011, Christian obtained his Ph.D at Utrecht University’s Freudenthal Institute with his thesis ‘Use of ICT for acquiring, practicing and assessing algebraic expertise'.
He was appointed at the University of Southampton in August 2012, specialising in Mathematics education, Technology use and research methods. In 2018 he became Associate Professor and in 2022 Full Professor in Mathematics Education.