Reifying algebraic-like equations in the context of constructing and controlling animated models

Citation:

Psycharis, G., Moustaki, F., & Kynigos, C. (2009). Reifying algebraic-like equations in the context of constructing and controlling animated models. In M. Tzekaki, Kaldrimidou, M., & Sakonidis, C. (Eds.), Proceedings of the 33rd Conference of the International Group for the Psychology of Mathematics Education (PME 33) (Vol. 4, pp. 425-432). Thessaloniki, Greece: PME.
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