Development is understood as occurring through mediation processes, which initially are external. To study that, a crisis situation was investigated. The case study of a biting baby was developed within a project which consisted in observing babies in a day care center. A microgenetic analysis was conducted through videorecordings and interviews. Mediation processes were identified, related not only to specific events, as well as to relational dramas. Mediation was not only directed to the boy, but also to caregivers and other children. Initially, the boy's movements of approach toward other children were appraised as promoting bonds. Later on, when behaviors became perceived as aggresive, adults began to be careful with him. Despite his age, adult attitudes towards him were based in conceptions about older children and adolescents behavior. His behavior was perceived as innate or as an indicator of a personality problem, leading the adults to isolate the child. However, based on cultural-historical perspective, mediation is considered a dialogical process, with meaning/role co-constructions, with children participation. The study highlights the need for further investigations, since such discussions are important for childhood education.
Mediation; biting; signification; daycare center