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Open peer commentary on the article “Constructivist Model Building: Empirical Examples From Mathematics Education” by Catherine Ulrich, Erik S. Tillema, Amy J. Hackenberg & Anderson Norton. Upshot: The target article by Ulrich et al. is a good example of constructivist research in mathematics education, and illustrates how constructivism can ground a research endeavour toward modelling students’ mathematical understandings. I propose to delve into these issues of model building and reflect on Maturana’s notion of the observer. I do this through discussing issues about the language used in the article and of data description, and of analysis of students’ mathematical activity.
Proulx J. (2014) From model building to the observer. Constructivist Foundations 9(3): 341–344. http://constructivist.info/9/3/341
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