At the 4th Primary School in Nea Alikarnassos we have Roma pupils and children of economic immigrants. The teachers face the problem of early school leaving and are willing to find solutions. The European Union has policies to address the phenomenon of dropout on many levels. The teachers in our school have already followed some in-service training and have attended seminars on the above topic. The mobility of teachers and school staff in European countries will contribute to the acquisition of theoretical knowledge, experience and good practices to be applied in practice starting from the next school year. These will help to face the problem using preventative measures, tailored enforcement actions, introducing new knowledge and practices in the school process, so that we will be able to face the phenomenon of dropout using the the triptych: prevention - intervention - compensation. The 6 teachers who will take part in this action are all sensitized regarding matters of early school leaving due to their long term and everyday contact with Roma pupils and children of economic immigrants and have sufficient knowledge of the English Language. The course is structured into nine different sections/modules, each one covering a different aspect of school dropout: European practices, the problem in our country, educational theories, identification of students at risk, strategies for prevention and solution of conflict situations, up to date productive teaching methods, assessment and prevention, special needs pupils, multiculturalism and learners from different socio-economic backgrounds, project and project workshops. The expected results are: improvement of the skills of trainees in the field of early school leaving, improvement in teaching children with special learning difficulties, practical ideas for classroom and school practices, enhancing inter-cultural awareness, improvement of trainees' professional profiles, increase in the capacity to work together on an international level, provision with ready material for use by teachers, creation of a European network of teachers for future cooperation. Attendance mainly includes practical activities which will inspire good practices and preventive measures. Upon returning, the above knowledge and experiences will be diffused to all teachers - parents - school children in the region, who are facing the same problem, through educational seminars and good practices, by cooperating with the Office of Educational Consultants and associated organizations.