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Raja, B. William Dharma; Kumar, S. Praveen – Journal on Educational Psychology, 2012
Children with learning disabilities face problems in acquiring the basic skills needed for learning. Dyscalculia is one among those learning disorders which affects the ability to acquire arithmetic skills that are needed to perform mathematical calculations. However this is a learning difficulty which is often not recognized. The objectives of…
Descriptors: Learning Disabilities, Literature Reviews, Synthesis, Arithmetic
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Yusta, Nyudule; Karugu, Geoffrey; Muthee, Jessica; Tekle, Tesfu – Journal of Education and Practice, 2016
Learners with dyscalculia in the integrated primary schools in Arusha have been performing poorly in the Primary School Leaving Examination (PSLE). Thus, the journal sought to investigate the impact of instructional resources on mathematics performance of learners with dyscalculia in integrated primary schools found in Arusha city, Tanzania. The…
Descriptors: Mathematics Instruction, Learning Disabilities, Elementary School Students, Statistical Analysis
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Bugden, Stephanie; Ansari, Daniel – Developmental Science, 2016
In the present study we examined whether children with Developmental Dyscalculia (DD) exhibit a deficit in the so-called "Approximate Number System" (ANS). To do so, we examined a group of elementary school children who demonstrated persistent low math achievement over 4 years and compared them to typically developing (TD), aged-matched…
Descriptors: Learning Disabilities, Children, Spatial Ability, Short Term Memory
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Mejias, Sandrine; Gregoire, Jacques; Noel, Marie-Pascale – Learning and Individual Differences, 2012
It has been hypothesized that developmental dyscalculia (DD) is either due to a defect of the approximate number system (ANS) or to an impaired access between that system and symbolic numbers. Several studies have tested these two hypotheses in children with DD but none has dealt with adults who had experienced DD as children. This study aimed to…
Descriptors: Number Systems, Computation, Mathematics, Adults
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Wang, Li-Chih; Tasi, Hung-Ju; Yang, Hsien-Ming – Research in Developmental Disabilities: A Multidisciplinary Journal, 2012
The present study presents a comparison of the cognitive inhibition abilities of dyslexic, dyscalculic, and control students. The participants were 45 dyslexic students, 45 dyscalculic students, and 45 age-, gender-, and IQ-matched control students. The major evaluation tools included six cognitive inhibition tasks which were restructured during…
Descriptors: Dyslexia, Inhibition, Learning Disabilities, Cognitive Processes
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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
Messenger, Chris; Emerson, Jane; Bird, Ronit – Mathematics Teaching Incorporating Micromath, 2007
In this article, the authors offer three definitions of dyscalculia, then describe the background and initial progress of the Harrow Dyscalculia Project. Their project in Harrow is associated with ongoing research into numeracy and brain development led by Brian Butterworth, Professor of Cognitive Neuropsychology at UCL. Pupils from Harrow schools…
Descriptors: Learning Disabilities, Mathematical Aptitude, Definitions, Brain
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Mohd Syah, Nor Elleeiana; Hamzaid, Nur Azah; Murphy, Belinda Pingguan; Lim, Einly – Interactive Learning Environments, 2016
This study describes the development of a basic computer-based play pedagogy intervention using a dyscalculia-remedy-oriented approach such as repetition and number orientation manipulation, and the investigation of its effect on children displaying dyscalculia characteristics. This computer play was evaluated in a group of 50 seven-year-old…
Descriptors: Computer Assisted Instruction, Learning Disabilities, Mathematics Instruction, Young Children
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Ashkenazi, Sarit; Mark-Zigdon, Nitza; Henik, Avishai – Cognitive Development, 2009
Children in third and fourth grades suffering from developmental dyscalculia (DD) and typically developing children were asked to compare numbers to a standard. In two separate blocks, they were asked to compare a number between 1 and 9 to 5, or a two-digit number between 10 and 99 to 55. In the single-digit comparisons, DD children were…
Descriptors: Control Groups, Reaction Time, Learning Disabilities, Mathematics Skills
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Mussolin, Christophe; De Volder, Anne; Grandin, Cecile; Schlogel, Xavier; Nassogne, Marie-Cecile; Noel, Marie-Pascale – Journal of Cognitive Neuroscience, 2010
Developmental dyscalculia (DD) is a deficit in number processing and arithmetic that affects 3-6% of schoolchildren. The goal of the present study was to analyze cerebral bases of DD related to symbolic number processing. Children with DD aged 9-11 years and matched children with no learning disability history were investigated using fMRI. The two…
Descriptors: Stimuli, Learning Disabilities, Short Term Memory, Brain
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Reigosa-Crespo, Vivian; Valdes-Sosa, Mitchell; Butterworth, Brian; Estevez, Nancy; Rodriguez, Marisol; Santos, Elsa; Torres, Paul; Suarez, Ramon; Lage, Agustin – Developmental Psychology, 2012
The association of enumeration and number comparison capacities with arithmetical competence was examined in a large sample of children from 2nd to 9th grades. It was found that efficiency on numerical capacities predicted separately more than 25% of the variance in the individual differences on a timed arithmetical test, and this occurred for…
Descriptors: Incidence, Achievement Tests, Gender Differences, Children
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Willburger, Edith; Fussenegger, Barbara; Moll, Kristina; Wood, Guilherme; Landerl, Karin – Learning and Individual Differences, 2008
In four carefully selected samples of 8- to 10-year old children with dyslexia (but age adequate arithmetic skills), dyscalculia (but age adequate reading skills), dyslexia/dyscalculia and controls a domain-general deficit in rapid automatized naming (RAN) was found for both dyslexia groups. Dyscalculic children exhibited a domain-specific deficit…
Descriptors: Dyslexia, Reading Skills, Arithmetic, Basic Skills
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Morsanyi, Kinga; Devine, Amy; Nobes, Alison; Szucs, Denes – Developmental Science, 2013
This study examined performance on transitive inference problems in children with developmental dyscalculia (DD), typically developing controls matched on IQ, working memory and reading skills, and in children with outstanding mathematical abilities. Whereas mainstream approaches currently consider DD as a domain-specific deficit, we hypothesized…
Descriptors: Gifted, Learning Disabilities, Mathematics Skills, Logical Thinking
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Mazzocco, Michele M. M.; Myers, Gwen F.; Lewis, Katherine E.; Hanich, Laurie B.; Murphy, Melissa M. – Journal of Experimental Child Psychology, 2013
Fractions pose significant challenges for many children, but for some children those challenges persist into high school. Here we administered a fractions magnitude comparison test to 122 children, from Grades 4 to 8, to test whether their knowledge of fractions typically learned early in the sequence of formal math instruction (e.g., fractions…
Descriptors: Mathematics Achievement, Learning Disabilities, Low Achievement, Mathematics Education
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Landerl, Karin; Fussenegger, Barbara; Moll, Kristina; Willburger, Edith – Journal of Experimental Child Psychology, 2009
This study tests the hypothesis that dyslexia and dyscalculia are associated with two largely independent cognitive deficits, namely a phonological deficit in the case of dyslexia and a deficit in the number module in the case of dyscalculia. In four groups of 8- to 10-year-olds (42 control, 21 dyslexic, 20 dyscalculic, and 26…
Descriptors: Reading Difficulties, Dyslexia, Phonological Awareness, Short Term Memory
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