Core foundations of abstract geometry

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Core foundations of abstract geometry

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Title: Core foundations of abstract geometry
Author: Dillon, Moira Rose; Huang, Y.; Spelke, Elizabeth S.

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Citation: Dillon, M. R., Y. Huang, and E. S. Spelke. 2013. “Core Foundations of Abstract Geometry.” Proceedings of the National Academy of Sciences 110 (35) (August 12): 14191–14195. doi:10.1073/pnas.1312640110.
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Abstract: Human adults from diverse cultures share intuitions about the points, lines, and figures of Euclidean geometry. Do children develop these intuitions by drawing on phylogenetically ancient and developmentally precocious geometric representations that guide their navigation and their analysis of object shape? In what way might these early-arising representations support later-developing Euclidean intuitions? To approach these questions, we investigated the relations among young children’s use of geometry in tasks assessing: navigation; visual form analysis; and the interpretation of symbolic, purely geometric maps. Children’s navigation depended on the distance and directional relations of the surface layout and predicted their use of a symbolic map with targets designated by surface distances. In contrast, children’s analysis of visual forms depended on the size-invariant shape relations of objects and predicted their use of the same map but with targets designated by corner angles. Even though the two map tasks used identical instructions and map displays, children’s performance on these tasks showed no evidence of integrated representations of distance and angle. Instead, young children flexibly recruited geometric representations of either navigable layouts or objects to interpret the same spatial symbols. These findings reveal a link between the early-arising geometric representations that humans share with diverse animals and the flexible geometric intuitions that give rise to human knowledge at its highest reaches. Although young children do not appear to integrate core geometric representations, children’s use of the abstract geometry in spatial symbols such as maps may provide the earliest clues to the later construction of Euclidean geometry.
Published Version: doi:10.1073/pnas.1312640110
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