This project aims to capture how semiotic resources (speech/sign, gestures, actions) are coordinated to construct meaning through the language practices transmitted to and used by children during French family dinners. Four teams will collect and analyze dinners in two age groups with hearing and deaf participants using two official languages of France: French and French sign language. Our study will lead to innovative results on the function and forms of situated interactive practices as they shape and propel the dynamics of family life. It will target social, discursive and semiotic variations in a valued French cultural habitat with its sensory experiences and its situated activities. The data collection, the multimodal platform, the semi-automatic annotation system developed in the project and our scientific results, will contribute to enrich the methods and theoretical models employed to understand the transmission of multimodal resources to speaking and signing children.