In France the “Maître E” is the teacher responsible for providing support to primary school pupils with learning difficulties. In recent years, the role of these specialist teachers changes: in addition to their core activity of direct support to students, they are required to coordinate efforts and cooperate with partners (Marcel al. 2007) which leads them to develop a special relationship with parents. This link with families is far from being completely described by educational policy, so we tried a better understanding of the nature of cooperation with the parents and how this cooperation is constructed by experience and integrates professional gestures of these teachers.