Ulrich Kortenkamp


Ladel, S., & Kortenkamp, U.. (2016). Artifact-Centric Activity Theory - A Framework for the Analysis of the Design and Use of Virtual Manipulatives. In P. Moyer-Packenham (Hrsg.), International Perspectives on Teaching and Learning Mathematics with Virtual Manipulatives (S. 25-40). Heidelberg: Springer Verlag.
Ladel, S., & Kortenkamp, U.. (2014). Development of a Flexible Understanding of Place Value. In . Malmö, Schweden: A Mathematics Education Perspective on early Mathematics Learning between the Poles of Instruction and Construction (POEM). Abgerufen von http://www.mah.se/upload/FAKULTETER/LS/LS-seminarier/POEM/Ladel_Kortenkamp%20-%20Development%20of%20a%20flexible%20understanding%20of%20place%20value.pdf
Kortenkamp, U., & Ladel, S.. (2014). Flexible Use and Understanding of Place Value Via Traditional and Digital Tools. Research Report. In P. Lilijedahl, Nicol, C., Oesterle, S., & Allan, D. (Hrsg.), Proceedings of the 38th Conference of the International Group for the Psychology of Mathematics Education and the 36th Conference of the North American Chapter of the Psychology of Mathematics Education. Vancouver, Canada: Psychology of Mathematics Education (PME).


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