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The advantage of tangible interaction is that it allows people to interact naturally. Tabletops are a collective support which can be used by several people simultaneously. In previous work, tabletop and tangible interaction were shown to be of interest in the learning process; the previous application was based on a classification task helping very young children in the recognition and learning of colors on one tabletop. This paper concerns distribution between connected tabletops. In order to provide a supervision tool in our case, this paper proposes more generally to distribute user interfaces between interactive tabletops which use tangible interaction. A design model is proposed for this type of system and is applied to design a distributed application for children and a supervisor on two interactive tabletops. An evaluation, with twelve test groups, each composed of three participants, has involved a …