A Fraction Sense Intervention for Sixth Graders With or At Risk for Mathematics Difficulties
Nancy I. Dyson, Nancy C. Jordan, Jessica Rodrigues, Christina Barbieri, Luke Rinne
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Source: Crossref
Published: Nov 28, 2018
DOI: 10.1177/0741932518807139
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The efficacy of a research-based fraction sense intervention for sixth graders with or at risk for mathematics difficulties ( N = 52) was examined. The intervention aimed to build understanding of fraction magnitudes on the number line. Key concepts were taught with a narrow range of denominators to develop deep understanding. The intervention was centered on a visual number line in the meaningful context of a color run race. Students were randomly assigned to the fraction sense intervention ( n = 25) or a business-as-usual control group ( n = 27). Students in the intervention condition received 21 lessons in small groups (45 min each) during their regular mathematics intervention period. Students in the intervention group performed significantly better than those in the control group on a measure of fraction number line estimation and a more general measure of fraction concepts, both at immediate posttest and delayed posttest, with large effect sizes; lesser effects were shown for fraction arithmetic.
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