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Geary, David C. – Mathematical Thinking and Learning: An International Journal, 2015

The collection of studies in this special issue make an important contribution to our understanding and measurement of the core cognitive and noncognitive factors that influence children's emerging quantitative competencies. The studies also illustrate how the field has matured, from a time when the quantitative competencies of infants and young…

Descriptors: Preschool Children, Statistical Analysis, Knowledge Level, Competence

Geary, David C. – Developmental Psychology, 2011

The study's goal was to identify the beginning of 1st grade quantitative competencies that predict mathematics achievement start point and growth through 5th grade. Measures of number, counting, and arithmetic competencies were administered in early 1st grade and used to predict mathematics achievement through 5th (n = 177), while controlling for…

Descriptors: Intelligence, Mathematics Education, Reading Achievement, Mathematics Achievement

Rouder, Jeffrey N.; Geary, David C. – Developmental Science, 2014

Learning of the mathematical number line has been hypothesized to be dependent on an inherent sense of approximate quantity. Children's number line placements are predicted to conform to the underlying properties of this system; specifically, placements are exaggerated for small numerals and compressed for larger ones. Alternative hypotheses…

Descriptors: Numbers, Number Concepts, Cognitive Development, Child Development

Geary, David C. – Learning and Individual Differences, 2010

The collection of articles in this special issue and related studies over the past decade provides a fine example of the substantial progress that has been made in our understanding and remediation of mathematical learning disabilities and difficulties since 1993 (Geary, 1993). The originally proposed procedural and retrieval deficits have been…

Descriptors: Mathematics Education, Learning Disabilities, Short Term Memory, Neuropsychology

Geary, David C. – Educational Psychologist, 2009

Alexander, Schallert, and Reynolds's (2009/this issue) "what," "where," "who," and "when" framework situates different perspectives on learning in different places in this multidimensional space and by doing so helps us to better understand seemingly disparate approaches to learning. The framework is in need of a fifth, "why" dimension. The "why"…

Descriptors: Learning Strategies, Theory Practice Relationship, Learning Motivation, Adolescents

Bailey, Drew H.; Siegler, Robert S.; Geary, David C. – Developmental Science, 2014

Recent findings that earlier fraction knowledge predicts later mathematics achievement raise the question of what predicts later fraction knowledge. Analyses of longitudinal data indicated that whole number magnitude knowledge in first grade predicted knowledge of fraction magnitudes in middle school, controlling for whole number arithmetic…

Descriptors: Predictor Variables, Middle School Students, Mathematical Concepts, Mathematics Instruction

Geary, David C. – Educational Psychologist, 2008

Schools are a central interface between evolution and culture. They are the contexts in which children learn the evolutionarily novel abilities and knowledge needed to function as adults in modern societies. Evolutionary educational psychology is the study of how an evolved bias in children's learning and motivational systems influences their…

Descriptors: Educational Psychology, Learning Motivation, Evolution, Bias

Geary, David C. – Educational Psychologist, 2008

Commentators' questions about the utility of an evolutionarily informed approach to children's schooling are addressed. I begin with discussion of our knowledge of the organization of evolved folk domains and clarify my proposals as to how evolved learning and motivational biases might influence the acquisition of nonevolved academic competencies.…

Descriptors: Educational Psychology, Folk Culture, Evolution, Academic Ability

Fuchs, Lynn S.; Geary, David C.; Fuchs, Douglas; Compton, Donald L.; Hamlett, Carol L. – Child Development, 2016

Children (n = 747; 6.5 years) were assessed on domain-general processes and mathematics and reading-related competencies (start of first grade), addition retrieval (end of second grade), and calculations and word reading (end of third grade). Attentive behavior, reasoning, visuospatial memory, and rapid automatized naming (RAN) indirectly…

Descriptors: Computation, Language Proficiency, Phonology, Naming

Fact Retrieval Deficits in Low Achieving Children and Children with Mathematical Learning Disability

Geary, David C.; Hoard, Mary K.; Bailey, Drew H. – Journal of Learning Disabilities, 2012

Using 4 years of mathematics achievement scores, groups of typically achieving children (n = 101) and low achieving children with mild (LA-mild fact retrieval; n = 97) and severe (LA-severe fact retrieval; n = 18) fact retrieval deficits and mathematically learning disabled children (MLD; n = 15) were identified. Multilevel models contrasted…

Descriptors: Learning Disabilities, Mathematics Achievement, Achievement Tests, Short Term Memory

Bailey, Drew H.; Littlefield, Andrew; Geary, David C. – Journal of Experimental Child Psychology, 2012

The ability to retrieve basic arithmetic facts from long-term memory contributes to individual and perhaps sex differences in mathematics achievement. The current study tracked the codevelopment of preference for using retrieval over other strategies to solve single-digit addition problems, independent of accuracy, and skilled use of retrieval…

Descriptors: Reaction Time, Grades (Scholastic), Mathematics Achievement, Short Term Memory

Geary, David C.; Hoard, Mary K.; Nugent, Lara – Journal of Experimental Child Psychology, 2012

Children's (N = 275) use of retrieval, decomposition (e.g., 7 = 4+3 and thus 6+7 = 6+4+3), and counting to solve additional problems was longitudinally assessed from first grade to fourth grade, and intelligence, working memory, and in-class attentive behavior was assessed in one or several grades. The goal was to assess the relation between…

Descriptors: Intelligence, Mathematics Achievement, Short Term Memory, Grade 4

Rosenberg-Lee, Miriam; Ashkenazi, Sarit; Chen, Tianwen; Young, Christina B.; Geary, David C.; Menon, Vinod – Developmental Science, 2015

Developmental dyscalculia (DD) is marked by specific deficits in processing numerical and mathematical information despite normal intelligence (IQ) and reading ability. We examined how brain circuits used by young children with DD to solve simple addition and subtraction problems differ from those used by typically developing (TD) children who…

Descriptors: Developmental Disabilities, Learning Disabilities, Numbers, Mathematics Skills

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

Fuchs, Lynn S.; Geary, David C.; Fuchs, Douglas; Compton, Donald L.; Hamlett, Carol L. – Journal of Educational Psychology, 2014

This study investigated contributions of general cognitive abilities and foundational mathematical competencies to numeration understanding (i.e., base-10 structure) versus multidigit calculation skill. Children (n = 394, M = 6.5 years) were assessed on general cognitive abilities and foundational numerical competencies at start of 1st grade; on…

Descriptors: Individual Differences, Cognitive Ability, Mathematics Skills, Numbers