Martin, H.,
2019,
Proceedings of the Eleventh Congress of the European Society for Research in Mathematics Education. Jankvist, U. T., van den Heuvel-Panhuizen, M. & Veldhuis, M. (eds.). Utrecht, the Netherlands:
Freudenthal Group & Freudenthal Institute, Utrecht University and ERME,
p. 4264-4265 2 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution