Our project joins with the framework of the professional training, to improve the level of English of our students of 3 sections of vocational high school diploma to allow them a better occupational integration or a better pursuit of studies. The English language is MAINLY used in all the professional sectors and particularly in those that we have chosen namely, administrative Management, Care to the person and electronics systems and digital. The project of mobility in Ireland and in the United Kingdom concerns 55 young people who are very motivated to participate because it is for them an opportunity " to take out there " as they say it themselves. The mobility of a duration of 5 weeks will include 1 week in a school of language to facilitate the internship in a company in which they will stay for 4 weeks. This project joins in the school program of the young person during its training of three years. We set up a methodology of project with the creation of a steering committee the role of which is to impulse, to conceive and to create tools of management and assessment, to select the concerned classes and the students who will be part of the mobility. This steering committee will also have to anticipate the problems of the mobility, meet the partners, organize the logistics and on the way back spread the share. The expected profits concern two parts, first the students with - The discovery of diversity, - The development of cultural broadering in a professional frame, - The improvement of the linguistic level in professional situation Next for the High School with - The promotion of a new method of learning for students sometimes in difficult school situation and often in a disadvantaged socioeconomic category - The implementation of a real synergy amplified by the organization of the mobilities, - The creation of a dynamic of project within the educational teams. As regards the long-term potential profits, we shall put forward a better adaptability to the fast-changing professional environment and an opening on the world from a personal point of view for the learner.