Montpensier and Saint Vincent de Paul vocational high schools have chosen to develop a European identity for their Administration, Sales and Catering sections. On top of the linguistic approach, the main ambition of the European sections is to give our students European cultural and professional knowledge. Learning only one language nowadays is not enough, the next generation must be multilingual. This leads us to our willingness to make this mobility compulsory for all our professional students. We are also conscious that this mobility develops better behaviours of our students. The objective of our teachers is to give our young people all the necessary tools to develop their professional, personal European skills as well as their citizenship (civility, culture, economy, language, gastronomy, history) Our project entitled” The mobility is an approach where the construction of the knowledges is done in action”, is a joint project with Montpensier and Saint Vincent de Paul. It is about the mobility in Europe, Ireland and Spain, for our students preparing their Leaving Certificate in 3 years, in Administration, Sales and Catering, with the option European English or Spanish.It consists of a Training Period in these countries, including 70 participants (66 students and 4 teachers). Placements abroad are proposed and organised in the last two years of high school. During the first week of each training period the students benefit from a linguistic and cultural immersion. For the first year : a placement is proposed to the students in the classes of Administration and Sales of the European Section. They are aged 15 or 16 and will go for two weeks to Athlone in Ireland or Valencia in Spain, in 2016 and 2017. It is a real advantage for these young people of 16, who change remarkably both personally and in their social behaviour. For the second year: a placement abroad is proposed to the students of the Catering class, European section. They are aged 18. They will go for four weeks to Derry in Ireland or to Huesca in Spain, in September and October 2015 and 2016. For the second year: a placement abroad is proposed to the students in the Administration and Sales classes, European section. They will go for three weeks to Derry in Ireland or to Valencia in Spain, in October - November 2015 and 2016. Common goals for all our schools in the Administration, Sales and Catering classes: - Capacity to adapt in a work team, despite differences in sex, culture or social origin. - Development of open mindedness and initiative. - Social and professional integration - Increased confidence and self-esteem - Learning vocational and language skills For our students, learning a language and using it in the professional world is essential to continue studying. Mobility is beneficial for professional integration as the businesses value it. Our students experiment supervised mobility, which very often encourages them to do it again spontaneously and so the probability of working abroad is high. The benefits of mobility are more than satisfactory, as follows: - Adaptability, analysis abilities, initiative - Greater confidence and self-esteem - Dealing with another language, culture, local gastronomy - Ability to cope with a problem The benefits of mobility can be immediate or delayed For young vocational students, mobility enhances personal development as they benefit from very rewarding and challenging experiences. Consequently, they become more involved in their professional or learning project and they come out of it better and more experienced. Moreover, the students commonly experience two work placements abroad. We intend to make training periods in European countries - Ireland or Spain- a more extended programme. Mobility allows our students to have access to the European job market.