"The ""Working Together"" project involved four schools which differed in size, location and technical equipment. Equally different were the teachers in terms of their skills and students and their families in terms of their social and socio-economic backgrounds. This diversity in the age of the digital revolution represents both, one of the greatest challenges and one of the greatest opportunities for teachers, students and their parents. That is why it was so important for us to develop, through intercultural exchange, a sense of European citizenship that leaves no room for intolerance and racism. We also understood the acquisition of 21st century skills (critical thinking, creativity, collaboration and communication) and social competences (autonomy, responsibility, leadership, empathy, teamwork, self-confidence) as well as the acquisition of digital skills as a prerequisite for personal development and successful professional progress. In teaching these skills and competencies, we considered innovative teaching practices in a student-centered approach to be particularly effective. Within this project, cooperative learning, problem-based learning and project-based learning were applied. Students exchanged information on cultural and traditional aspects (e.g. national symbols, food, holidays/festivals, music and dance, games) in the activities carried out. The pupils created their own digital presentations and videos, digital games and eBooks about feelings, recipes and as a dictionary. During the Learning Teaching and Training Activities, workshops were held on various digital applications (e.g. www.bookcreator.com, www.thinglink.com, www.learningapps.org) and coding. New methods such as BreakoutEDU games and Geocaching were also tested. In the course of the project, the ""working together"" became a ""learning and developing together"", because the effect on the teachers, pupils, parents and institutions involved could be clearly observed. So all participants developed a greater understanding of other cultures, which was accompanied by a greater sense of belonging to Europe. In addition, both teachers and pupils improved their digital competences, which was reflected in an independent and fluent handling of digital applications. Students learned to work together creatively, cooperatively and communicatively, showing a high degree of autonomy and responsibility for their learning process and empathy for their fellow students. As the participating institutions also recognised the importance of such projects and integrated content aspects of the project into their school curriculum and plan to participate in further projects, the idea of collaborative work will continue after the project and teachers, students and their parents will benefit from it in the future."