The project proposes to set up and disseminate an original training on agroecology at the European level to develop skills for actors of sustainable agricultural development. Agroecology, providing new paradigms for management of natural resources, challenges the interfaces between productive activities, ecological systems and societies. Operating the transition towards agroecological agriculture implies for agronomical academics and professionals of agriculture and development to obtain new knowledge and skills at the interface between disciplines and at the interface between sciences and practices that disciplinary and current academic training in Europe cannot yet afford. To reach these goals, we propose an innovative training founded on interdisciplinary and action-based approaches and on the added value of crossing a diversity of expertise between partners from Northern and Southern Europe. With this objective we have structured the teaching team with partner groups from different research, educational and professional institutions involved in agroeocology in Europe and chosen representatives focusing on the diversity of agroeocological topics, agricultural and cultural contexts and scientific frameworks. Practically speaking, the training project is structured around a summer school conceived to develop the abilities of students in formalizing agroecological problematics and finding their solutions while taking into account the technical, ecological and social dimensions. The teaching method is based on problem (work on study cases) and collective based learning processes crossing disciplines and academic/professional points of view guided with targeted knowledge inputs (conferences, conceptual and methodological frameworks) along with direct dialogue with stakeholders (through field trips or presentations of case studies). Each year a “working-group” of partners will be in charge of building and implementing the annual session of the school through a specific topic framework. With this process, the training school will be enriched each year by the collective work of partners with new knowledge inputs as well as teaching methods. Each year we will capitalize the yearly production of the school, such as conference building, bibliographies, reports on case studies, and postcasts on stakeholders' media. These products constitute the material pool to build the virtual expansion of the school and operate a large scale dissemination of concepts and products of the school throughout Europe and at the same time enrich the pool of potential participants (students, stakeholders). All the material from the summer school session will be available from the website of the project. Four multiplier events (two Field Trips and two seminars) will disseminate the concepts and methodes of the projects.