This thesis continues the works on practice analysis in the teaching field. Among the numerous settings inwhich the psyche and the professional meet, the Support to Support Group works (in french GSAS) on the complexityof the teacher-pupil relationship, through case studies of pupils brought in by participants.The aim of this thesis is to understand and analyse the efficiency of the GSAS method. Two hypotheses haveguided the research: first, the time-structure process supports the holding work of the group, allowing for a uniqueempathic experience; second, the subjective appropriation of this empathic experience contributes to modify theteacher-pupil relationship in the classroom. The clinical material derives from two complementary sources: the waygroups function as observed as a participant and trainer on the one hand, as well as clinical interviews of GSAS parti -cipants on the other.A first theoretical part shows how the GSAS, imagined by the psychoanalyst J. Lévine, is rooted in the historyof the psychoanalytic pedagogy movement, how it derives and differs from Balint Groups. It introduces the 3 phasesmethod, followed by a moment initiated in the group to prepare the return in the classroom. The second theoretical partdeals with empathy from a historic and conceptual point of view. The empathy, then related to the skin-ego and in adialogue between the ego and the self, is explored in a psychoanalytical perspective and a spiritual approach.The results of the clinical part show that experimenting the empathic process prepares for the empathic positioning.Receiving the affects or emotions of a person presenting a pupil’s case, then the interplay of identifications andprojections to enter the pupil’s supposed inner landscape, and lastly, the exchanges around psycho-pedagogical hypothesesare all part of the group experience. This experience prepares for the inner gesture which characterises theempathic positioning: receiving-understanding-supporting.The specificity of this setting is to pass on a posture close to maternal empathy towards the pupils. The psychologicaltasks of attention and of normal projective identification at work in this clinical group practice could concernother professionals confronted with the suffering of others, who also need to be supported in their professional-ego.