文章基本信息

标题：Age-Related Changes in Children’s Strategies for Solving Two-Digit Addition Problems
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作者：Patrick Lemaire ; Fleur Brun
期刊名称：Journal of Numerical Cognition
印刷版ISSN：2363-8761
出版年度：2018
卷号：3
期号：3
页码：582-597
DOI：10.5964/jnc.v3i3.117
语种：English
出版社：PsychOpen
摘要：The present study investigated how elementary-school children solve two-digit addition problems (e.g., 34+68). To achieve this end, we examined age-related differences in children’s strategy use and strategy performance. Results showed that (a) both third and fifth graders used a set of 9 strategies, (b) fifth-grade individuals used more strategies than third-grade individuals, (c) age-related differences in the size of strategy repertoire was partially explained by age-related differences in basic arithmetic fluency, (d) how often children used each available strategy changed with problem difficulty and children’s age, as younger children tended to focus more on one or two strategies and older children used a wider range of strategies, (e) increased arithmetic performance with age varied with problem difficulty both when overall performance was analyzed and when analyses of performance was restricted to children’s favorite strategy. The present findings have important implications for our understanding of how complex arithmetic performance changes with children’s age and change mechanisms underlying improved performance with age in complex arithmetic.
关键词：strategies; two-digit problem solving;development