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Sinclair, Margaret; Mamolo, Ami; Whiteley, Walter J. – Educational Studies in Mathematics, 2011
This article focuses on the development and problematization of a task designed to foster spatial visual sense in prospective and practicing elementary and middle school teachers. We describe and analyse the cyclical stages of developing, testing, and modifying several "task drafts" related to ideas around dilation and proportion. Challenged by…
Descriptors: College Students, Adult Learning, Adult Students, Middle School Teachers