The presentation is ready, the posters are printed, the materials are packed … we are very well prepared for our workshop on October 13th in Berlin. Our sponsors of the Donors‘ Association for German Science, the Daimler Fund and the Daimler and Benz Foundation have invited us to present our first international STEM Summer School. The goal is the presentation of exemplary concepts for the internationalization of STEM subjects. In a joint workshop with the project of the University of Paderborn, we present our results of the first Summer School course and discuss discovered potentials and challenges with the participants. This exchange will hopefully give us a lot of input for the second round of the STEM Summer School from April to June 2017.