Proportional reasoning in the laboratory: an intervention study in vocational education

Autor: Bakker, Arthur, Groenveld, Djonie, Wijers, Monica, Akkerman, Sanne F., Gravemeijer, Koeno P. E.
Zdroj: Educational Studies in Mathematics, 2014 Jun 01. 86(2), 211-221.
Databáze: JSTOR Journals