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Odic, Darko – Developmental Science, 2018
Young children can quickly and intuitively represent the number of objects in a visual scene through the Approximate Number System (ANS). The precision of the ANS--indexed as the most difficult ratio of two numbers that children can reliably discriminate--is well known to improve with development: whereas infants require relatively large ratios to…
Descriptors: Correlation, Mathematics, Number Concepts, Comparative Analysis
Obersteiner, Andreas; Tumpek, Christine – ZDM: The International Journal on Mathematics Education, 2016
Research suggests that people use a variety of strategies for comparing the numerical values of two fractions. They use holistic strategies that rely on the fraction magnitudes, componential strategies that rely on the fraction numerators or denominators, or a combination of both. We investigated how mathematically skilled adults adapt their…
Descriptors: Eye Movements, Fractions, Comparative Analysis, Numbers

Paik, Jae H.; Mix, Kelly S. – Child Development, 2003
Two experiments tested claim that transparency of Korean fraction names promotes fraction concepts. Findings indicated that U.S. and Korean first- and second-graders erred similarly on a fraction-identification task, by treating fractions as whole numbers. Korean children performed at chance when whole-number representation was included but…
Descriptors: Children, Cognitive Development, Comparative Analysis, Cross Cultural Studies