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Amber Y. Wang; Robin F. Schumacher; Barbara J. Dougherty; Samantha Wavell; Joseph Dimino; Russell Gersten – Learning Disabilities Research & Practice, 2024
This pilot study examined the feasibility of using worked examples as a mechanism to improve verbal explanations of fractions concepts among Grade 5 students with mathematics difficulties in a small-scale randomized controlled trial (RCT) before scaling up to a large-scale RCT. Students (N = 49) were randomly assigned to a business-as-usual (BAU)…
Descriptors: Grade 5, Mathematics Instruction, Fractions, Mathematical Concepts
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Schumacher, Robin F.; Jayanthi, Madhavi; Gersten, Russell; Dimino, Joseph; Spallone, Samantha; Haymond, Kelly S. – Learning Disabilities Research & Practice, 2018
A formative pilot study of a fractions intervention was conducted to address the intervention's potential for improving fifth-grade struggling students' knowledge of fractions, and to identify any logistical or instructional design issues, before scaling up for a randomized control trial. In the first section, we provide details of the formative…
Descriptors: Fractions, Mathematics Instruction, Intervention, Grade 5
Rodrigues, Jessica; Jordan, Nancy C.; Hansen, Nicole – Journal of Learning Disabilities, 2019
This study investigated the accuracy of three fraction measures (i.e., fraction number line estimation accuracy, general fraction concepts, and fraction arithmetic) for screening fourth graders who might be at risk for mathematics difficulties. Receiver operating characteristic (ROC) curve analyses assessed diagnostic accuracy of the fraction…
Descriptors: Fractions, Screening Tests, At Risk Students, Elementary School Students