lecture 4 (10) - Mathematics disorder Demographics The...

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Mathematics disorder Demographics The number of children with mathematics disorder is not entirely clear. The Diagnostic and Statistical Manual of Mental Disorders , which is the basic manual consulted by mental health professionals in assessing the presence of mental disorders, indicates that about 1% of school age children have mathematics disorder. Other studies, however, have found higher rates of arith metical dysfunction in children. Likewise, some studies find no gender difference in the prevalence of mathematics disorder, while others find that girls are more likely to be affected. Mathematics disorder, like other learning disabilities, however, appears to run in families, suggesting the existence of a genetic component to the disorder. Diagnosis Mathematics disorder is not usually diagnosed before a child is in the second or third grade because of the variability with which children acquire mathematical fluency. Many bright children manage to get through to fourth- or fifth-grade level in mathematics by using
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lecture 4 (10) - Mathematics disorder Demographics The...

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