How do you assess a mathematics disability?
One need not be a mathematics expert to evaluate a child's ability and style of doing math. A one-to-one mathematics interview is the best format for noting details. In the interview one focuses as intently on how the child does mathematics as on what or how correct they do it. It is essential to keep in mind that you are searching for what does work at the same time as you are probing to find out what doesn't work.