In this study we aim at showing how the collective work of a researcher, working with issues of "health of the student," improves the living conditions and safety of children in a nursery school. The involvement of children in the initial process of an action research allowed the awareness to health problems. The cooperative form instituted after a few years in school and nursery class in particular, allowed a "natural" appropriation by the children of a domain that is sensitive to them. We aim at contributing to the education of all members of the school community, educational community, going beyond the strict framework, by inserting new national education programs. Numerous health problems addressed in this work were started by children, teachers and parents. The demand for continuing education has been a constant for the relevance of this work . It only makes sense if it inscribes in the living spaces of the children in school, in families, and other social spaces.
