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Muñez, David; Bull, Rebecca; Lee, Kerry; Ruiz, Carola – Child Development, 2023
This study recruited 428 Singaporean children at risk of math learning difficulties (MLD; M[subscript age] = 83.9 months, SD[subscript age] = 4.35 months; 41% female). Using a factor mixture model that considered both quantitative and qualitative differences in math ability, two qualitatively different groups were identified: one with generalized…
Descriptors: Foreign Countries, Children, At Risk Persons, Mathematics
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Vukovic, Rose K.; Fuchs, Lynn S.; Geary, David C.; Jordan, Nancy C.; Gersten, Russell; Siegler, Robert S. – Child Development, 2014
Longitudinal associations of domain-general and numerical competencies with individual differences in children's understanding of fractions were investigated. Children (n = 163) were assessed at 6 years of age on domain-general (nonverbal reasoning, language, attentive behavior, executive control, visual-spatial memory) and numerical (number…
Descriptors: Children, Individual Differences, Mathematics, Arithmetic
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Fuson, Karen C.; Kwon, Youngshim – Child Development, 1992
Examined Korean second and third graders' understanding of multidigit addition and subtraction. Korean children showed exceptional competence in multidigit addition and subtraction, and their solutions were based on quantitative understanding of multidigit numbers. Results are compared to the literature on the performance and conceptual structures…
Descriptors: Addition, Arithmetic, Concept Formation, Cultural Differences