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Direct linkWilkey, Eric D.; Shanley, Lina; Sabb, Fred; Ansari, Daniel; Cohen, Jason C.; Men, Virany; Heller, Nicole A.; Clarke, Ben – Developmental Science, 2022
Children's ability to discriminate nonsymbolic number (e.g., the number of items in a set) is a commonly studied predictor of later math skills. Number discrimination improves throughout development, but what drives this improvement is unclear. Competing theories suggest that it may be due to a sharpening numerical representation or an improved…
Descriptors: Numbers, Mathematics Skills, Predictor Variables, Number Concepts
Sokolowski, H. Moriah; Merkley, Rebecca; Kingissepp, Sarah Samantha Bray; Vaikuntharajan, Praja; Ansari, Daniel – Developmental Science, 2022
Which dimension of a set of objects is more salient to young children: number or size? The "Build-A-Train" task was developed and used to examine whether children spontaneously use a number or physical size approach on an un-cued matching task. In the Build-A-Train task, an experimenter assembles a train using one to five blocks of a…
Descriptors: Young Children, Task Analysis, Numbers, Knowledge Level
Download full textWilkey, Eric D.; Shanley, Lina; Sabb, Fred; Ansari, Daniel; Cohen, Jason C.; Men, Virany; Heller, Nicole A.; Clarke, Ben – Grantee Submission, 2021
Children's ability to discriminate nonsymbolic number (e.g. the number of items in a set) is a commonly studied predictor of later math skills. Number discrimination improves throughout development, but what drives this improvement is unclear. Competing theories suggest it may be due to a sharpening numerical representation or an improved ability…
Descriptors: Numbers, Mathematics Skills, Predictor Variables, Number Concepts
Cracking the Code of Place Value: The Relationship between "Place" and "Value" Takes Years to Master
Cheung, Pierina; Ansari, Daniel – Developmental Psychology, 2021
"Place value," which underlies the meanings of multidigits, encompasses the principle of position and base-10 rules. To understand 65, one needs to know that the digits 6 and 5 occupy different positions and thus represent ordered values of different magnitudes (i.e., the "principle of position") and that the value of each…
Descriptors: Number Concepts, Children, Child Development, Age Differences
Lau, Nathan T. T.; Merkley, Rebecca; Tremblay, Paul; Zhang, Samuel; De Jesus, Stefanie; Ansari, Daniel – Developmental Psychology, 2021
Research has shown that two different, though related, ways of representing magnitude play foundational roles in the development of numerical and mathematical skills: a nonverbal approximate number system and an exact symbolic number system. While there have been numerous studies suggesting that the two systems are important predictors of math…
Descriptors: Kindergarten, Symbols (Mathematics), Mathematics Instruction, Predictor Variables
Hawes, Zachary; Merkley, Rebecca; Stager, Christine L.; Ansari, Daniel – British Journal of Educational Psychology, 2021
Background: Research into numerical cognition has contributed to a large body of knowledge on how children learn and perform mathematics. This knowledge has the potential to inform mathematics education. Unfortunately, numerical cognition research and mathematics education remain disconnected from one another, lacking the proper infrastructure to…
Descriptors: Numbers, Research and Development, Theory Practice Relationship, Cognitive Science
