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News and Publications

News

Dr. Geary serves on the National Mathematics Advisory Panel. Final Report Released March 13, 2008. Video summary available. Learn more.

Project Summary for Teachers, Principals, and other Educational Professionals Fall 2010 [in pdf]


Article about Mathematical Disabilities for Parents and Teachers

Mathematical Disabilities: What We Know and Don't Know by David C. Geary


More detailed articles and chapters on Mathemematics and Learning Disablities


Geary, D. C. (2013). Early foundations for mathematics learning and their relations to learning
disabilities. Current Directions in Psychological Science, 22, 23-27.
[ article in pdf ]

Geary, D.C., Hoard, M. K., Nugent, L., & Bailey, H. D. (2013). Adolescents’ functional numeracy is predicted by their school entry number system knowledge. PLoS ONE, 8(1): e54651. doi:10.1371/journal.pone.0054651
[ article on PLos ONE ]

Geary, D. C. (2013). Learning disabilities in mathematics: Recent advances. In H. L. Swanson, K. Harris, & S. Graham (Eds.), Handbook of learning disabilities (second edition) (pp. 239-255). New York: Guilford Press.

Chu, F., vanMarle, K.,  & Geary, D. C. (2013). Quantitative deficits of preschool children at risk for mathematical learning disability. Frontiers in Developmental Psychology, 4,195. doi: 10.3389/fpsyg.2013.00195
[ original article ]

Geary, D. C., Hoard, M. K., Nugent, L., & Bailey, D. H. (2012). Mathematical cognition deficits in children with learning disabilities and persistent low achievement: A five year prospective study. Journal of Educational Psychology, 104, 206–223.
[ article in pdf ]

Geary, D. C., Hoard, M. K., & Bailey, D. H. (2012). Fact retrieval deficits in low achieving children and children with mathematical learning disability. Journal of Learning Disabilities, 45, 291-307.
[ article on PubMed ]

Cho, S., Metcalfe, A. W. S., Young, C. B., Ryali, S. Geary, D. C., & Menon, V. (2012). Hippocampal-prefrontal engagement and dynamic causal interactions in the maturation of children’s fact retrieval. Journal of Cognitive Neuroscience, 24, 1849–1866.
[ article on PubMed ]

Bailey, D. H., Littlefield, A., & Geary, D. C. (2012). The co-development of skill at and preference for use of retrieval-based processes for solving addition problems: Individual and sex differences from first to sixth grade. Journal of Experimental Child Psychology, 113, 78-92.
[ article on PubMed ]

Bailey, D. H., Hoard, M. K., Nugent, L., & Geary, D.C. (2012). Competence with fractions predicts gains in mathematics achievement. Journal of Experimental Child Psychology, 113, 447-455.
[ article on PubMed ]

Geary, D.C., Hoard, M. K., & Nugent, L. (2012). Independent contributions of the central executive, intelligence, and in-class attentive behavior to developmental change in the strategies used to solve addition problems.Journal of Experimental Child Psychology, 113, 49-65.
[ article on PubMed ]

Geary, D. C. (2011). Cognitive predictors of individual differences in achievement growth in mathematics: A five year longitudinal study. Developmental Psychology, 47, 1539-1552.
[ article on PubMed ]

Geary, D. C. (2011). Consequences, characteristics, and causes of poor mathematics achievement and mathematical learning disabilities. Journal of Developmental and Behavioral Pediatrics, 32, 250-263.
[ article on PubMed ]

Geary, D. C., Hoard, M. K., & Bailey, D. H. (2011). How SLD manifests in mathematics. In Flanagan, D. P., & Alfonso, V. C. (Eds.), Essentials of Specific Learning Disability Identification (pp. 43-64). Hoboken, NJ: Wiley.

Cho, S., Ryali, S., Geary, D. C., & Menon, V. (2011). How do you solve 7+8?: Decoding children's brain activity patterns during counting versus retrieval. Developmental Science, 14, 989-1001.
[ article on PubMed ]

Geary, D. C., Berch, D. B., Boykin, A. W., Embretson, S., Reyna, V., & Siegler, R. S. (2011). Learning mathematics: Findings from the national (United States) mathematics advisory panel. In N. Canto (Ed.), Issues and proposals in mathematics education (pp. 175-221). Lisbon, Portugal: Gulbenkian.

Geary, D. C. (2010). Missouri longitudinal study of mathematical development and disability. British Journal of Educational Psychology Monograph Series II, 7, 31-49. In R. Cowan, M. Saxton, & A. Tolmie (Eds.), Understanding number development and number difficulties (No. 7, British Journal of Educational Psychology, Monograph Series II: Psychological Aspects of Education - Current Trends). Leicester, UK: British Psychological Society.
[ article in pdf ]

Geary, D. C. (2010). Mathematical learning disabilities. In J. Holmes (Ed.), Advances in Child Development and Behavior (Vol. 38, pp. 45-77). San Diego, CA: Academic Press.

Geary, D. C. (2010). Mathematical disabilities: Reflections on cognitive, neuropsychological, and genetic components. Learning and Individual Differences, 20, 130-133.
[ article on PubMed ]

Meyer, M. L., Salimpoor, V. N., Wu, S. S., Geary, D. C., & Menon V. (2010) Differential contribution of specific working memory components to mathematical skills in 2nd and 3rd graders. Learning and Individual Differences, 20, 101-109.
[ article on PubMed ]

Geary, D. C., Bailey, D. H., Littlefield, A., Wood, P., Hoard, M. K., & Nugent, L. (2009). First-grade predictors of mathematical learning disability: A latent class trajectory analysis. Cognitive Development, 34, 411-429.
[ article in pdf ]

Geary, D. C., Bailey, D. H., & Hoard, M. K. (2009). Predicting mathematical achievement and mathematical learning disability with a simple screening tool: The Number Sets Test. Journal of Psychoeducational Assessment, 27, 265-279.
[ article in pdf ]

Geary, D. C., Hoard, M. K., Nugent, L., & Byrd-Craven, J. (2008). Development of number line representations in children with mathematical learning disability. Developmental Neuropsychology, 33(3), 277-299.
[ article in pdf ]

Wu, S., S., Meyer, M. L., Maeda, U., Salimpoor, V., Tomiyama, S., Geary, D. C., & Menon, V. (2008). Standardized assessment of strategy use and working memory in early mental arithmetic performance. Developmental Neuropsychology, 33(3), 365-393.
[ article in pdf ]

Hoard, M. K., Geary, D. C., Byrd-Craven, J., & Nugent, L. (2008). Mathematical cognition in intellectually precocious first graders. Developmental Neuropsychology, 3:33, 251-276.
[ article in pdf ]

Geary, D. C., Hoard, M. K., Byrd-Craven, J., Nugent, L., & Numtee, C. (2007). Cognitive mechanisms underlying achievement deficits in children with mathematical learning disability. Child Development, 78, 1343-1359.
[ article in pdf ]

Geary, D. C. (2007). An evolutionary perspective on learning disability in mathematics. Developmental Neuropsychology, 32, 1-49.
[ article in pdf ]

Geary, D. C. (2004). Mathematics and learning disabilities. Journal of Learning Disabilities, 37, 4-15.
[ article in pdf ]

Geary, D. C., Hoard, M. K., Byrd-Craven, J., & DeSoto, M. C. (2004). Strategy choices in simple and complex addition: Contributions of working memory and counting knowledge for children with mathematical disability. Journal of Experimental Child Psychology, 88, 121-151.
[ article in pdf ]

Geary, D. C. (2003). Learning disabilities in arithmetic: Problem solving differences and cognitive deficits. In H. L. Swanson, K. Harris, & S. Graham (Eds.), Handbook of learning disabilities (pp. 199-212). New York: Guilford Press.
[ article in pdf ]

 

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