Plane thinking:mental representations in number line estimation as a function of orientation, scale, and counting proficiency

Simms, Victoria and Muldoon, Kevin and Towse, John (2013) Plane thinking:mental representations in number line estimation as a function of orientation, scale, and counting proficiency. Journal of Experimental Child Psychology, 115 (3). pp. 468-480. ISSN 0022-0965

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Abstract

Young children typically show strong biases when estimating the placement of numbers on or along a scale. Number line estimation changes in accuracy and linearity across development. However, existing research is almost entirely based on a horizontal number line, which presupposes that numbers are scaled on a horizontal plane only. We present data that broaden our understanding of number line estimation by also including vertically oriented scales. This study presented 4- to 7-year-olds with the number line estimation task presented in both horizontal and vertical orientations and on different scales. Our results suggest that children store numbers as accurately in the vertical plane as in the horizontal plane, although some developmental changes are observed. Our results highlight how even simple experimental manipulations can reveal the complexities of internal representations of number.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Experimental Child Psychology
Additional Information:
The final, definitive version of this article has been published in the Journal, Journal of Experimental Child Psychology 115 (3), 2013, © ELSEVIER.
Subjects:
ID Code:
62767
Deposited By:
Deposited On:
12 Mar 2013 16:50
Refereed?:
Yes
Published?:
Published
Last Modified:
19 Feb 2020 08:12