The collaboration of our School of Social Work with the School of Social Work of Louvain was formalized in 2010 as part of an Erasmus interinstitutional partnership agreement, renewed in 2014. It was initially focused on student mobility placement, inbound and outbound. The partnership dialogue has subsequently focused on a mobility project teaching which culminated in April 2015. A French trainer went to Leuven and provided four hours of instruction. That time was preceded by an educational meeting 4:00 with the team of Belgian trainers to finalize the course content with Belgian students. They have worked together on supervision method (Balint) applied to students in Paris and the challenges of social work in the future. They were able to share their teaching practices for learning the reflexive approach of students, consider adjustments to develop reflexive approach to social work education. Analysis of professional practices is a module to strengthen to develop a reflective approach among students.   The 4 hour course is aimed at a group of thirty students 2nd and 3rd year of training Social Service Assistant. This lesson focuses on the system of youth protection in France. After a general presentation of the French system, students worked from a case, reported from field experience by the French trainer. This case, which the students had learned before his arrival, has promoted the link between theory and accompanying practices. A dynamic setting with students debate highlighted the differences and similarities of the two approaches. In this course, exchanges and questions were clarified on prevention, adherence families, partnership dynamics, the child's place in the educational decisions and evolving issues related to children and youth . The objective was to put into perspective the invariants of support practices and differences, particularly in the identification of institutions mobilized around this issue. The results of this action with the students reinforced the trainers in the will to extend this mobility in 2015-2016 and consider teaching mobility of a Belgian trainer in Paris. A meeting was held last October in Paris to finalize this project. Another extension of this mobility: A study visit is planned in May 2015 for French students of 2nd year in Leuven. In addition, two Belgian students who attended this course confirmed their Erasmus placement mobility project in Paris for the year 2015-2016. A French student will perform a 3rd year internship in Belgium in 2016-2017.