The paper presents the aims and the design of the international e-learning course for teacher training "International Project" / Internet and Competence to work on the Project"/IPC/, organized with students from the Sofia University "St. Kliment Ohridski" (Bulgaria) and universities from Germany, USA, Spain, Japan, Sweden and Poland (http://www.internationalproject-ipc.com/en/). The project has a long tradition and is developed in co-operation from university teachers by using different methods and approaches. The project is based on an inquiry-based learning. The topics of the student's investigations are connected with the school education and with the children's perspective on school, teaching and learning. Coached by university teachers and tutors the students work in many international groups using different research methods and web tools as wikis, chat forums or blogs. By working on topics selected from the teacher training curriculum the students improve their expertise related to the curriculum and develop awareness of cultural differences. At the end of the course the students from the different universities present the results of the comparative international research and do conclusions about the differences and similarities in the curriculum and the education in different countries and continents. The IPC project fosters the development of many competences for teacher students because of working and doing educational research in international team. [For the full proceedings, see ED622227.]