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Direct linkPeeters, Dominique; Degrande, Tine; Ebersbach, Mirjam; Verschaffel, Lieven; Luwel, Koen – European Journal of Psychology of Education, 2016
This study tested whether second graders use benchmark-based strategies when solving a number line estimation (NLE) task. Participants were assigned to one of three conditions based on the availability of benchmarks provided on the number line. In the bounded condition, number lines were only bounded at both sides by 0 and 200, while the midpoint…
Descriptors: Computation, Grade 2, Elementary School Students, Problem Solving
Torbeyns, Joke; Verschaffel, Lieven; Ghesquiere, Pol – Cognition and Instruction, 2006
The aim of the study was to analyze the development of children's adaptive expertise in computing sums and differences up to 100. We defined the adaptive nature of children's strategy choices on the basis of problem (addition, subtraction), achievement, and strategy performance (accuracy, speed). Sixty-nine 2nd graders of high, above-average, or…
Descriptors: Children, Computation, Arithmetic, Problem Solving
