Abstract
In this article, I present and build on the ideas of John Threlfall [(Educational Studies in Mathematics 50:29–47, 2002)] about strategy development in mental mathematics contexts. Focusing on the emergence of strategies rather than on issues of choice or flexibility of choice, I ground these ideas in the enactivist theory of cognition, particularly in issues of problem posing, for discussing the nature of the solving processes at play when solving mental mathematics problems. I complement this analysis and conceptualization by offering two examples about issues of emergence of strategies and of problem posing, in order to offer illustrations thereof, as well as to highlight the fruitfulness of this orientation for better understanding the processes at play in mental mathematics contexts.
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Notes
In a subsequent article in ZDM, Threlfall (2009) continues the discussion of some of these aspects. When relevant, I refer to some of these additional arguments, often in footnotes.
In his 2009 paper, Threlfall extends this comparison to include Torbeyns’ classification.
As well, even if Threlfall does not discuss this issue, it could be argued that at the level of research itself the idea of offering classifications and categories is not a fruitful route for obtaining adequate “information” and understandings about students’ strategy processes in mental mathematics contexts. Threlfall’s view displaces the focus, as I have argued elsewhere (Proulx, 2012a,b), away from knowing categories of solving and more toward understanding the nature of the mathematical activity students are engaging with in mental mathematics contexts, for characterizing the kind of mathematics they generate in these.
Even if I do not go down this explanatory route (for simple matters of irrelevance for this article), there exist points of junction as well as points of rupture between Darwin’s theory of evolution and what Maturana and Varela offer. For more details on this, see Maturana and Mpodozis (1999).
Referring to living systems, Davis (2004b) illustrates the idea of structural determinism by explaining that one cannot predict the behavior of a dog when kicked, since what it does does not depend on how it is kicked but on the dog’s structure: “The way that a complex system responds to a situation is determined by the system itself, not the situation”.
This is an issue that Towers and Davis (2002) discuss in their article about the coupling, that is, mutual influence, of students’ activities.
The problems and the strategies for solving them are thus not arbitrary. To paraphrase Nùñez, Edwards and Matos (1999), “they are motivated by our everyday experience—especially our bodily experience, which is biologically constrained” (p. 52).
This said, as one reviewer noted, “tasks can be designed to be so constraining that there is an appearance of the task causing the student’s behaviour”, not leaving or opening much space of engagement. However, that causation, as Varela et al. (1991) explain, is to be seen strictly as an appearance, inferred after the fact by an external observer.
Not that strategies are “new” in a sense that nothing similar has been attempted before, but are generated for the tasks faced, locally tailored to them, and thus reflect both the task and the solver.
For those two examples, I make use of usual data material used in mental mathematics studies, that is, students’ oral explanations of their strategies and ways of solving. Obviously, this can raise methodological issues that are worth considering (for the data collection and analysis). However, those issues are not tackled here, as the focus of the article is elsewhere, related to conceptualizing/theorizing strategy development in mental mathematics.
Those are not to be seen as exclusive and can be seen as overlapping. As well, they are not meant to represent an exhaustive list of possibilities for solving this task, as others can be developed in another context.
The presence of the y = x line was used as a referent for helping students in writing their answers.
Even if I do not discuss this, mainly due to space constraints but also for the direct relevance to the issues under consideration here, an argument could be made, and has been by others (see e.g. Kieren & Simmt, 2009; Maheux & Roth, 2011; Pirie & Kieren, 1994), that meanings and strategies engaged with are one and the same.
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Acknowledgments
I wish to thank Nadine Bednarz, Tom Kieren, Jean-François Maheux, and Elaine Simmt for their insightful suggestions and helpful comments on this article.
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Proulx, J. Mental mathematics, emergence of strategies, and the enactivist theory of cognition. Educ Stud Math 84, 309–328 (2013). https://doi.org/10.1007/s10649-013-9480-8
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DOI: https://doi.org/10.1007/s10649-013-9480-8