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Direct linkKelsey J. MacKay; Filip Germeys; Wim Van Dooren; Lieven Verschaffel; Koen Luwel – Educational Studies in Mathematics, 2025
Rational numbers, such as fractions and decimals, are harder to understand than natural numbers. Moreover, individuals struggle with fractions more than with decimals. The present study sought to disentangle the extent to which two potential sources of difficulty affect secondary-school students' numerical magnitude understanding: number type…
Descriptors: Number Concepts, Numeracy, Secondary School Mathematics, Secondary School Students
Walter F. Castro; Jose Wilde Cisneros; Rodolfo Vergel – Discover Education, 2025
Introduction: In this paper, we present how seventh-grade students become aware of rational numbers during mathematics instruction through the social process of objectification when comparing two magnitudes. Methods: Theoretical elements of the Theory of Objectification and the Onto-Semiotic Approach to Mathematical Instruction and Cognition guide…
Descriptors: Instructional Design, Program Implementation, Measurement, Number Concepts
Gena Nelson; Eunji Kong; Sarah Quinn; Derek Kosty; Emily J. Wilke; Ben Clarke – Learning Disabilities Research & Practice, 2025
This scoping review describes mathematics intervention studies that include initial skill moderation analyses. Sixteen studies were included that focused on students with or at risk for mathematics difficulties (MD). The results revealed that mathematics intervention studies with initial skill moderation analyses focused on students in…
Descriptors: Mathematics Instruction, Intervention, Mathematics Skills, Educational Research
