Educational contributions of the computerized models of cognitive diagnostic in the subtraction algorithm. Ana Belén Sánchez García asg@usal.es University of Salamanca

In this article we examine the most interesting systems of computerized diagnosis in the environment of the subtraction. In the same way, we also analyze the pedagogic contributions from these models of procedural knowledge to the field of the mathematical education. For it, we revise some contributions of the Cognitive Psychology, the Computer Science and the Science of the Education. These provide necessary information to be able to analyze the causes of the errors in the mathematical processes and contributes to represent the processes like didactic complement to the diagnosis.

Keywords: cognitive procedural, diagnostic models, errors in the subtraction