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Recommendations that teachers promote argument and discourse in their mathematics classrooms anticipate researchers' needs for methods for examining and analyzing such talk. One form of discourse is oral arguments, including proofs. We ask: How can we track the development of an oral argument by...
Mathematics education and assessments increasingly involve arithmetic problems presented in context: a realistic situation that requires mathematical modeling. This study assessed the effects of such typical school mathematics contexts on two aspects of problem solving: performance and strategy...
This article adds to sociocultural theories of learning by investigating knowing and learning in the hobby of model rocketry. Hobbies are paradigmatic of interest-based, long-term pursuits and studying the tailored practices the rocketeers craft for themselves sheds further light on the...
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