Media type: E-Book Title: Students learning with digital mathematical tools – three levels of instrumental genesis Contributor: Schmidt, Swantje [VerfasserIn]; Müller, Matthias [VerfasserIn] imprint: Duisburg; Essen: Universität Duisburg-Essen, 2020 Extent: 1 Online-Ressource Language: English DOI: 10.17185/duepublico/70778 Identifier: Origination: Footnote: In: 14th International Conference on Technology in Mathematics Teaching - ICTMT 14 : Essen, Germany, 22nd to 25th of July 2019 Access State: Restricted Access | Information to licenced electronic resources of the SLUB Rights information: Attribution - Non Commercial - No Derivs (CC BY-NC-ND)