"Diversity and diversification characterize the student population in France, Germany and the Netherlands. How can these two characteristics facilitate and promote the inclusion of pupils in schools and their acquisition of basic skills? How can we encourage, help and support pedagogical teams and school principals who want to set up, improve and develop pedagogical programmes designed to achieve these goals? Seven partners from North Rhine-Westphalia (Germany), South Holland (the Netherlands) and the Lille area (France) - schools, universities and one governmental education authority - have formed a strategic cross-sectoral partnership to exchange good practices in primary and secondary education. This partnership - called Manières d'Apprendre et de Réussir l'Initiative et l'Autonomie Novatrices et Non-discriminantes en Europe ""MARIANNE"" - has observed and studied, analysed and compared, improved and developed innovative and non-discriminatory methods of learning and promoting initiative and autonomy in Europe. MARIANNE has broadly focused on educational projects that develop initiative and entrepreneurship (EntreComp) and on approaches that integrate content (EIST / MINT / STEM) or integrate content and languages (AICL / bilingualer Unterricht / CLIL).A sequence of three joint training events to observe and study these specific pedagogical projects in situ was followed by a sequence of three joint training events designed to improve and develop these specific pedagogical projects in the regions of the partners. The participation of three universities and the establishment of a council of experts guaranteed the quality of analysis, comparison and reflection on the actions, schools and regions of the MARIANNE partnership. In two years, the MARIANNE partnership has both multiplied and qualified inclusive pedagogical actions and provided pupils with basic skills. To accomplish this, MARIANNE first contributed to the in-service training of teams of teachers, school principals and headteachers to enable them to implement effective, equitable and sustainable pedagogical projects for the inclusion of pupils and the development of their basic skills. MARIANNE thus hopes to generate an open and shared European expertise in inclusive pedagogical actions and developing basic skills."