The objective of this study was to analyze the organization of an activity within small groups, starting from significations obtained within the context of physical education lessons. As tools of methodology, videography and micro-genetic analysis were employed, both utilized from a cultural-historical perspective. The activity under analysis was the development of a game, on part of a group of students. From the flow of interaction, it became evident that an element of vocal competition had arisen among the group members, in an attempt to occupy a position of prominence over the others, an event that lead to a little mediation on part of the teacher. Therefore, it can be seen that the activity performed in small groups is an important realm of interaction, where participating members act as locus of production of significations, through the possibility of alliances, confrontation and opposition of ideas between participating subjects.
Small groups; game; significance