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Dyslexia and Dyscalculia

Definition of Dyslexia:

“Dyslexia is a specific learning disability that is neurobiological in origin. It is characterized by difficulties with accurate and/or fluent word recognition and by poor spelling and decoding abilities. These difficulties typically result from a deficit in the phonological component of language that is often unexpected in relation to other cognitive abilities and the provision of effective classroom instruction. Secondary consequences may include problems in reading comprehension and reduced reading experience that can impede growth of vocabulary and background knowledge.”

Adopted by the IDA Board of Directors, Nov. 12, 2002. This Definition is also used by the National Institute of Child Health and Human Development (NICHD).

The definition of dyslexia was added to the NC Policies Governing Services for Children with Disabilities in August 2017.


Dyslexia Guidance- US Department of Education 

Memo Dyslexia Topic Brief

Dyslexia Topic Brief

Dislexia - Un Resumen del tema

Dyslexia and Dyscalculia:  A Report on Statewide Efforts

International Dyslexia Association Fact Sheets


IDA Dyslexia Handbook:  What Every Family Should Know

IDA Webinars

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