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Title: Estimation of 'real' numerosities in elementary school children
Authors: Luwel, Koen ×
Verschaffel, Lieven #
Issue Date: Sep-2008
Publisher: I.S.P.A./Instituto Superior de Psicologia Aplicada
Series Title: European Journal of Psychology of Education vol:23 issue:3 pages:319-338
Abstract: Groups of mathematically strong and weak second-, fourth- and sixth-graders were individually confronted with numerosities smaller and larger than 100 embedded in one-, two- or three-dimensional realistic contexts. While one third of these contexts were totally unstructured (e.g. an irregular piece of land jumbled up with 72 cars), another third had a clear structure (e.g. a 16x4 rectangular parking lot completely filled with 64 cars), and a last third had a "semi-structure" (e.g. the same 16x4 parking lot but with a number of cars missing). Besides analyzing the effects of different task and subject variables on pupils' accuracy and response-time data, the study involved an analysis of their estimation strategies, with an emphasis on multiplicative strategies that profited by some of the tasks' geometrical (semi-)structure. It was found that many children actually made use of such strategies, that using these strategies did however not always lead to accurate estimations, and that their frequency and efficiency increased with age.
ISSN: 0256-2928
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Education and Training
Instructional Psychology and Technology
Research Centre for Educational Research & Development, Campus Brussels (-)
Faculty of Economics and Business (FEB) - miscellaneous
× corresponding author
# (joint) last author

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