According to the International Dyslexia Association, “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.”
In other words, some children have a brain difference that results in difficulty with reading and spelling. Dyslexia has absolutely nothing to do with a child’s intelligence – just their learning style. Traditional, current approaches to teaching reading and spelling are not wrong, but they may not be effective for children with dyslexia.