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Psyridou, Maria; Torppa, Minna; Tolvanen, Asko; Poikkeus, Anna-Maija; Lerkkanen, Marja-Kristiina; Koponen, Tuire – Developmental Psychology, 2023
The aim of the present study was to examine the kinds of developmental profiles of arithmetic fluency skills that can be identified across Grades 1-9 (ages 7-16) in a large Finnish sample (n = 2,518). The study also examined whether membership in the developmental profiles could be predicted using a comprehensive set of kindergarten-age factors,…
Descriptors: Profiles, Arithmetic, Mathematics Skills, Elementary School Students
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Hornburg, Caroline Byrd; Brletic-Shipley, Heather; Matthews, Julia M.; McNeil, Nicole M. – Mathematics Teacher: Learning and Teaching PK-12, 2021
Children need support in the early elementary grades to construct a deep, formal understanding of foundational prealgebraic concepts. In this article, the authors share recommendations for teaching one such foundational concept--mathematical equivalence. First, they define mathematical equivalence and discuss research supporting the benefits of…
Descriptors: Elementary School Students, Mathematics Instruction, Algebra, Teaching Methods
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