Casper, M. & Rösken-Winter, B. (2013). Needs-based mathematics teachers’ continuous professional development. Proceedings of the 37th Conference of the International Group for the Psychology of Mathematics Education. Kiel: PME.
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Casper, M. & Rösken-Winter, B. (2013). Needs-based mathematics teachers’ continuous professional development. Proceedings of the 37th Conference of the International Group for the Psychology of Mathematics Education. Kiel: PME.

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