A huge amount of excellent computer aided teaching and learning (CAT) materialalready exists in Europe, but there is far less experience (and also competence) atusing these materials effectively within regular classroom activities and outside. This isespecially true with respect to getting girls and boys interested to study science, andmotivated to get acceptable learning results. Recent research results from scienceeducation show, that there are good chances for improving the classroom practice if thematerials are appropriately used and adapted to the specific needs within the schools ofthe different countries (and offered with easy-to-follow teacher instructions). A transferof those results into teaching practice within Europe will be organised by our project.Since teaching practice differs within the different European countries, it will bedeveloped as a concept of culture oriented support activities. International scientists andteachers, experienced within this field, will work together and adapt their nationallyoriented ideas and research results to other needs.The intention of our project is to design and test modules for a teacher-training course,which enables teachers to judge the quality of computer aided learning environments inscience teaching, to adapt best-practice examples of those environments to their ownteaching, and to evaluate their own teaching afterwards. For this purpose, we will usealready existing environments of the different project-countries.The course itself will be established as ICT-based content, and will be published as ahandbook linked with “best-practice”- examples. Our project wants to establish a newand flexible teacher-training course that is useful in all participating but also in othercountries. All materials will be carried out in English and in all partner languages. Theproject will show that discussing and judging the quality of CAT for science teaching isan actual question in all European countries.