The Kerschensteiner Gemeinschaftsschule, a school in Mannheim with approximately 425 pupils, is changing. The German school type “Werkrealschule“will successively be substituted by a new school type, the “Gemeinschaftsschule“. This change is immensely influencing the mixture of the teachers’ body, the heterogeneity of the pupils and the structure and the challenges of everyday lessons. The goal of the school’s steady advancement is individualized learning, learning companions instead of teachers and a school that knows how to use its diversity in open and positive ways. Most teachers are not trained for this kind of school which sees its pupils for what they are: individuals with different skills. This school type sees its pupils as responsible, self-reliant learners and adapts to this individual requirements. This project’s aim is to offer further training for teachers. Six colleagues - either members of the school development team or the head of school, or learning companions of the Gemeinschaftsschule - take part in the seminar “Individualisiertes Lernen an schwedischen Schulen” (Individual learning at Swedish schools) to gain new insights in how to deal with heterogeneity in school. The attendance of this seminar will be accompanied by pre- and post conferences and discussions in which the whole teachers’ body will be involved. The project will deliver new and deeper answers to different questions regarding daily school routine at the Kerschensteiner Gemeinschaftsschule, for example how to deal with the heterogeneous mixture of students, the resulting diverse requirements and the challenges of inclusion. Improvements concerning types of exercises for class and free work time and internal differentiation in the class room are expected particularly. The colleagues who take part in this seminar will afterwards establish a further training for the rest of the teachers’ body in order to share their impressions, ideas and insights.