Designing an Interactive Learning Environment (ILE) requires work within a multi-disciplinary team [9]. In this paper, we describe the designing process of the ILE AMBRE, the purpose of which is to teach methods. We show how, based on didactic work, we chose to represent the specialist knowledge to be taught to the learner through Artificial Intelligence techniques. We also describe how we adjusted the Case-Based Reasoning paradigm (CBR), derived from Artificial Intelligence, to teaching abstract knowledge based on problem classes. Last we describe a Cognitive Psychology experiment we conducted in order to test the appropriateness of the thus designed EIAH to the goals of the AMBRE project.