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- Document type:
- Konferenzbeitrag
- Author(s):
- Ufer, S.; Heinze, A.; Reiss, K.
- Title:
- Mental models and development of geometric proof competency
- Editor:
- Tzekaki, M.; Kaldrimidou, M.; Sakonidis, H.
- Book / Congress title:
- Proceedings of the 33rd Conference of the International Group for the Psychology of Mathematics Education
- Volume:
- 5
- Publisher:
- PME
- Publisher address:
- Thessaloniki
- Year:
- 2009
- Pages:
- 257– 264
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