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Delgado, Cesar; Jones, M. Gail; You, Hye Sun; Robertson, Laura; Chesnutt, Katherine; Halberda, Justin – International Journal of Science Education, 2017
Crosscutting concepts such as "scale, proportion, and quantity" are recognised by U.S. science standards as a potential vehicle for students to integrate their scientific and mathematical knowledge; yet, U.S. students and adults trail their international peers in scale and measurement estimation. Culturally based knowledge of scale such…
Descriptors: Scaling, Number Systems, Public Schools, Grade 7
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Libertus, Melissa E.; Feigenson, Lisa; Halberda, Justin – Developmental Science, 2011
Previous research shows a correlation between individual differences in people's school math abilities and the accuracy with which they rapidly and nonverbally approximate how many items are in a scene. This finding is surprising because the Approximate Number System (ANS) underlying numerical estimation is shared with infants and with non-human…
Descriptors: Nonverbal Ability, Mathematics, Number Systems, Preschool Children