The term Hyscalculia' is used to describe specific difficulties with mathematics. In many ways it is the mathematical equivalent of dyslexia, which is a specific difficulty with literacy.
Pupils with dyscalculia seem to be just as intelligent as their peers. They have been taught in the same way and engaged in the same mathematical activities - and yet they encounter distinct difficulties in mastering the basics of mathematical thinking. As a result they often fail to acquire the essential concepts that underpin skills in performing mathematical procedures.