Learning aids and learners' activities in the field of object-oriented modelling

We introduce “exploration modules (EMs)” as new aids for learning objectoriented modelling in learner-centred Informatics education. The learners’ activities, when using EMs are described. It is shown and discussed in detail, in how far EMs can help learners at the solution of complex problems, e.g. modelling a library system. Moreover a phase concept for the inclusion of our overall conception for learning and teaching OOM for beginners, called “Didactic System for OOM”, in the teacher education is introduced, which has successfully been tested at the University of Dortmund.