Describes a study of preschool children's utterances and their context, intended to provide evidence of children's argumentative capacities. Shows how children, though perhaps not consciously, use language to intervene upon reality in order to modify a state of things by sensibly arguing their case. (SED)

Investigates the development of communicative competence during preschool age by analyzing certain types of communicative acts and sequences of communicative acts in adult-child and child-child communication. Assumes there are certain phases in which a child is especially prepared for the acquisition of certain types of communicative acts. (SED)