Media type: Electronic Journal Title: ZDM : mathematics education Other titles: Titelzusatz Volume 39, issue 1 (February 2007)-volume 52, issue 7 (December 2020): the international journal on mathematics education Published: Berlin; Heidelberg: Springer, 2007- Publication information: 39.2007 - Language: English ISSN: 1863-9704 Keywords: Mathematikunterricht Origination: Footnote: In SLUB collection: Übergangsvereinbarung DEAL: 39.2007 - SpringerNature DEAL: 52.2020,1 - In further SLUB collection: Access State: Open Access