Rehabilitation of number processing and calculation skills

The main purpose of this article is to present the research that has been done on the rehabilitation of number and calculation disorders. It is argued that theoretically based rehabilitation of arithmetical processing requires the formulation of a detailed functional diagnosis based on a theoretically driven evaluation of numerical processing and calculation skills. Up to now, the strategies that have been adopted in this rehabilitation field have mainly consisted in attempts to re-teach lost knowledge via extensive practice. These therapeutic programmes are described in two domains: the transcoding of numerals and the retrieval of arithmetical facts. Finally, the authors underline the necessity to develop in the near future programmes of rehabilitation adopting a more ecological perspective.