Job mobility is a key factor in Europe's economic success. It offers many benefits to the workers, giving them access to new work environments, a new culture, a new language. Since 2004 -date of the creation of its european class in spanish- the technical high school Gaston Darboux has been supporting student mobility in Spain. Responsible and motivated, students enrolled in this class can perform their compulsory four-week training course in Spain, Vinaros or Benicarlo (Valencian Community). For 10 years, our school has regularly succeeded in getting scholarships without which our students would not have been able to pay for a training course abroad. Motivated by the positive feedback of the project, all conscientious and aware of the opportunity offered to them, our students are more likely to volunteer to join the project. Mobility is scheduled for November / December 2015 and 2016. These students have been specifically prepared since September 2014. Indeed, in addition to their traditional language course, they will have completed an intensive Spanish unit (1hour Spanish language and culture, and 1 hour vocational education in Spanish, called DNL) for a total of 4 hours per week. The companies and organizations that will host them in Spain are steady and go-ahead. For 10 years, the tutors we have been working with (heads of departments, supervisors, etc.) are eager to continue the experience and increase it. Through their involvement, students receive daily monitoring ans assistance in case of need. Our partners in Spain (Carmen Torres, French teacher in our partner school, even Juani Rodriguez, head of rental apartments, etc.) also help efficiently and manage potential issues. Besides deepening their language skills, mobility gives our students a significant cultural experience : in fact, live daily in a foreign language and mix with different people give a different perspective on your own culture and otherness beyond prejudices. Immersion in Spain also allows our students to develop greater independence, as it is for most of them, their first experience outside the family. They need time to adjust to a new lifestyle (share a flat with other trainees, go shopping, do the housework, get used to different work schedules, etc.). It goes without saying that mobility also allows greater flexibility. The job market is becoming increasingly difficult, and a résumé highlighting additional skills, motivation for greater openness and experience in Europe, is a major asset for our pupils, coming mainly from disadvantaged socio-professional backgrounds. Their future job search will be easier. This training experience abroad represents a unique opportunity for them to open up to other people, to discover other ways of life, to deepen their linguistic, cultural and professional skills, in a spirit of tolerance and respect for all differences.