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Ladel, S., & Kortenkamp U. (2013).  Designing a technology based learning environment for place value using artifact-centric activity theory. (Lindmeier, A. M., & Heinze A., Ed.).Proceedings of the 37th conference of the International Group for the Psychology of Mathematics Education. Mathematics learning across the life span. 1, 188-192.PDF icon LadelKortenkamp-DTBLE-RF4pme37-2013.pdf (81.92 KB)
El-Demerdash, M., & Kortenkamp U. (In Press).  The Development of an Instrument to Measure Geometric Creativity. PDF icon El-DemerdashKortenkamp-DIMGC-.pdf (229.31 KB)
Libbrecht, P., Kortenkamp U., & Mercat C. (2009).  I2Geo: a Web-Library of Interactive Geometry. (Sojka, P., Ed.).Proceedings of the 2nd Workshop Towards a Digital Mathematics Library (DML-2009). PDF icon LibbrechtKortenkamp-IWIG-2009a.pdf (1.29 MB)
Libbrecht, P., Kortenkamp U., Rebholz S., & Müller W. (2013).  Tales of a Companion Teacher Analytics. (Vatrapu, R., Ed.).Proceedings of the 2nd International Workshop on Teaching Analytics (IWTA-2013). PDF icon LibbrechtKortenkamp-TCTA-2013a.pdf (804.96 KB)
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