Cultural diversity belongs to any social community which has its own identity, ethnic origin, history, language and forms of artistic expression. As biodiversity needs the ecosystem to carry on and evolve, cultural diversity needs to take roots in a cultural system and in the human dialogue. They both form the most important issues of sustainable development and of the European territory which the school has to speak about. The number and variety of the proposed actions within this project ABC2D, have been planned to develop the self-respect and the respect of other people as well as the respect of the environment and of any kind of diversity: school, social, intellectual or language diversity. The practical aspect consists of a non-conventional approach to help all those young people who risk failure and exclusion. Transmitting knowledge by college students to primary school students or by professional experts to our teenagers is a real advantage for future life and job experiences. They will deal with the project topics in concrete terms so that these authentic and real-life activities will be the unifying leitmotif of groups. The project aims to overcome the domain expertise and the different languages barriers (French, Greek, Romanian and Italian) for a universal and noticeable topic. It mobilises various scientific knowledge and transversal skills. The multiplicity of issues, belonging to different geographical areas, allows both a pluralist approach and the analysis of the same topic under the aegis of identity integration. Cultural diversity is mainly represented by different languages being the manifestation of intellectual heritage. The French college is the coordinator of the project and of the communication platform. All partner schools are committed to carrying out the actions planned and have an equally responsibility for ensuring the development of students' competencies and skills, the pedagogic and methodological procedures and all the beneficial impacts. Direct relationship with education staff will be established by each country project coordinator in order to state the most appropriate learning approach for the 128 proposed actions. Every new learning object used by the teachers will be recordable and printable, they will be re-used by any European educator in order to disseminate and transfer learning innovative approaches. The project results will be disseminated on the Internet by means of school blogs and sites; any kind of digital product will be realized: newspaper articles, evaluation reports, research publications, photos and videos, short films, drama and dance videos, meetings and exchange reports. Facebook and the e-twinning platform or similar will be other means to implement the dissemination of results. During the school partners meetings activity plans as well as specific tasks will be detailed in an agenda considering everyone's suggestion after checking for the proposed activities feasibility. The multiplicity of the project, its intrinsic richness will involve local families who will host European students and will directly take part in the activities proposed during the workshops. All possible educational institutions will be involved in the project (primary schools, lower and upper secondary schools, and universities for special purposes) and by means of a multi-sectoral teamwork (schools, enterprises, business companies, local authorities, open farms…) we would like to strengthen the collaborative initiative of each member aiming to a professional and exploitable practice dissemination. During the local project meetings each participant will make specific areas reports and will evaluate students' products, he/she will share his/her personal experience and will discuss about the methodology used to teach the topic. These relations will allow sharing the highest number of issues achieved by the working group and showing the vastness of the topic as a successful combination for young generations. The diversity and multiplicity of collaborations will allow the proliferation of relationships and the dissemination of technical, environmental, cultural and also economic information. Enhancing the actions about environment protection and the specific cultural frames during the students' or teachers' stays abroad will be the strength of the project. The main objective is to show that what makes our diversity is not necessary only biological or social. It is also our cultural heritage which once forgotten, it hardly re-emerges. The cultural heritage is a unique source of innovation, of creativity, of exchanges. As well as biodiversity, it ensures the sustainable development in its material and spiritual dimensions.