Design, implementation and evaluation of an interface in a Computer Based Learning Environments: the example of PÉPITE

The work presented here is part of a multidisciplinary project, called the PEPITE project. Its aim is to set up a system to build student cognitive profiles to evaluate their competences in elementary algebra. We consider here the problems linked to using didactic know-how related to pencil & paper tasks and in particular how to transfer these tasks to a data processing system.