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2013 Conference Proceedings - University of Nevada, Las Vegas

2013 Conference Proceedings - University of Nevada, Las Vegas

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THE EVOLUTION OF STUDENT IDEAS: THE CASE OF MULTIPLICATIONKris H. GreenSt. John Fisher Collegekgreen@sjfc.eduBernard P. RiccaSt. John Fisher Collegebricca@sjfc.eduThe genesis <strong>of</strong> ideas, studied by Piaget and others, is important in understanding how studentslearn, which in turn, informs pedagogy. Using biological genetics as a metaphor for learning, werevisit previous work on multiplication, examine some teachers’ explanations <strong>of</strong> multiplicationand explore how these teachers use their explanations to generate new understandings <strong>of</strong>multiplication. This examination supports the use <strong>of</strong> the biological metaphor, and provides someinsight into how to teach multiplication with attention to flexible thinking.Taxonomies related to knowledge and learning abound (e.g., Anderson & Krathwohl, 2001;Kamii, Clark & Dominick, 1997). However, despite the large number <strong>of</strong> classifications <strong>of</strong>knowledge and the recent understandings <strong>of</strong> constructivism, relatively little is known about thedynamics <strong>of</strong> how these understandings are constructed by learners. This is likely due to theprevailing metaphors regarding learning (Thelen 1997, 2005). In this paper, we propose ametaphor for learning – that learning is similar to biological evolution in many respects – thatenables a new look at the evolution <strong>of</strong> student ideas, benefitting researchers in student cognitionand teachers planning curriculum and instruction.Genetic Metaphor for LearningTheoretical FrameworkOn one hand, a biologically-inspired approach is nothing new, as Piaget’s geneticepistemology (Gallagher & Reid, 2002) followed his own training in zoology. Piaget’s notionsare insightful and influential when considering the genesis <strong>of</strong> knowledge, but do not take agenetic (in the biology sense) approach. Following Thelen (1997), we propose a new way to lookat some <strong>of</strong> these same issues, and we believe that this new lens can aid teachers in ways thatPiaget’s ideas cannot. In particular, this new metaphor can more clearly guide instruction thatincorporates existing student ideas, giving more guidance to constructivist approaches toteaching. Although discussing these individually is beyond the scope <strong>of</strong> this paper, this metaphoralso unifies a number <strong>of</strong> approaches to cognition.This piece is too short for a full explication <strong>of</strong> biological genetics, but the overview likely isknown to most readers, and only some details are necessary for the current work. Roughlyspeaking, in sexual reproduction biological <strong>of</strong>fspring both resemble their parents and differ from<strong>Proceedings</strong> <strong>of</strong> the 40 th Annual Meeting <strong>of</strong> the Research Council on Mathematics Learning <strong>2013</strong> 189

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