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Elementary school children’s use of indirect addition in relation to working memory competencies. In G. Peters (Chair), Strategy flexibility in elementary computation tasks: cognitive and instructional factors. Symposium conducted at the biennial meeting of the European Association for Research on Learning and Instruction (EARLI)

By Greet Peters, Joke Torbeyns and Lieven Verschaffel

Abstract

This study focused on children’s use of the direct subtraction (DS) and indirect addition (IA) strategy when mentally solving subtractions in the number domain up to 1000, taking into account their working memory (WM). Sixty-nine 6th-graders participated in 3 sessions, and each time they solved an Arithmetic Task and a WM Task. All Arithmetic Tasks consisted of 10 subtraction problems (5 DS-problems; 5 IA-problems) and were offered in 1 choice condition (children could choose between DS and IA on each subtraction) and 2 no-choice conditions (they had to use either DS or IA). The IA-strategy was used frequently and efficiently. No effect of WM was found on frequency; efficiency analyses showed an interaction between condition, problem type and WM group only for accuracy, not for speed. Surprisingly, only children with lower WM capacities fitted their strategy choices to their individual strategy speed abilities. We will discuss the theoretical, methodological, and instructional implications.status: publishe

Topics: Quantitative methods, Teaching/instruction, Cognitive skills, numeracy, Mathematics, Primary education
Year: 2015
OAI identifier: oai:lirias.kuleuven.be:123456789/506301
Provided by: Lirias
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