American Heritage® Dictionary of the English Language, Fourth Edition
- n. Impairment of the ability to solve mathematical problems, usually resulting from brain dysfunction.
- n. impaired ability to learn grade-appropriate mathematics
- From dys-, from Ancient Greek δυς- (dus-, "bad") + calculate, from Latin calculare. (Wiktionary)
- dys- + calcul(ate) + -ia1. (American Heritage® Dictionary of the English Language, Fourth Edition)
“A poor performance on such tasks is termed dyscalculia or acalculia and is associated with dominant hemisphere often parietal dysfunction.”
“Live Science examines the neuropsychology of numbers, and 'dyscalculia' - impairment in the ability to do mathematical operations.”
“Ben and I share something called dyscalculia, or, simply stated, math dyslexia.www. dyscalculia.org, an individual with dyscalculia may have accelerated language skills, poetic and creative ability, and a good visual memory.”
“Recent discoveries point at the fact that a medical condition known as dyscalculia, similar in some ways to dyslexia, is responsible for some people not being able to handle even daily calculations, such as paying for products and receiving their change.”
“Another focus of Stanislas Dehaene’s work is a condition called dyscalculia, or number blindness, in which one’s number sense is defective.”
“It is called dyscalculia and it is just starting to get the attention that dyslexia has gotten.”
“Understanding dyscalculia has a social urgency, since adults with low numeracy are much more likely to be unemployed or depressed than their peers.”
“It is estimated, in fact, that academic papers on dyslexia outnumber those on dyscalculia by about ten to one.”
“Neuroscientist Brian Butterworth, of University College London, frequently writes references for people he has tested for dyscalculia, explaining to prospective employers that the failure to achieve school math qualifications is not due to laziness or lack of intelligence.”
“If you have dyscalculia, however, it can take up to three seconds.”
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