Volume 10 · Number 3 · Pages 351–352
Body Syntonicity in Multi-Point Rotation?

Arthur Hjorth

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Open peer commentary on the article “Elementary Students’ Construction of Geometric Transformation Reasoning in a Dynamic Animation Environment” by Alan Maloney. Upshot: Parnorkou and Maloney’s article presents an interesting, well-structured and clearly described study of children’s reasoning about mental rotations. Specifically, Parnorkou and Maloney deploy the microworld Graphs ’n Glyphs, and use it as a “window on thinking-in-change” as they observe and interview children who use it. Reading the article raised a few questions for me about the role of body syntonicity in learning about rotation of geometric shapes, and I wonder where (or if) the authors feel these foundational concepts fit in with their research.


Hjorth A. (2015) Body syntonicity in multi-point rotation? Constructivist Foundations 10(3): 351–352. http://constructivist.info/10/3/351

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