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Direct linkCaviola, Sara; Colling, Lincoln J.; Mammarella, Irene C.; Szucs, Dénes – Developmental Science, 2020
We determined the relative importance of the so-called approximate number system (ANS), symbolic number comparison (SNC) and verbal and spatial short-term and working memory (WM) capacity for mathematics achievement in 1,254 Grade 2, 4 and 6 children. The large sample size assured high power and low false report probability and allowed us to…
Descriptors: Elementary School Students, Number Systems, Short Term Memory, Mathematics Achievement
Lourenco, Stella F.; Bonny, Justin W. – Developmental Science, 2017
A growing body of evidence suggests that non-symbolic representations of number, which humans share with nonhuman animals, are functionally related to uniquely human mathematical thought. Other research suggesting that numerical and non-numerical magnitudes not only share analog format but also form part of a general magnitude system raises…
Descriptors: Mathematics Skills, Skill Development, Correlation, Task Analysis
van Marle, Kristy; Chu, Felicia W.; Li, Yaoran; Geary, David C. – Developmental Science, 2014
The study assessed the relations among acuity of the inherent approximate number system (ANS), performance on measures of symbolic quantitative knowledge, and mathematics achievement for a sample of 138 (64 boys) preschoolers. The Weber fraction (a measure of ANS acuity) and associated task accuracy were significantly correlated with mathematics…
Descriptors: Preschool Children, Child Development, Number Systems, Numeracy
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
