This paper discusses the use of different media for art instruction and creative activities with preschoolers at the Reggio Emilia preschools in Italy. Drawing made with markers, paper constructions, clay sculpture, and wooden constructions are all used to deepen children's understanding of a particular theme or concept. Typically, a small group of children will work together in a team, each making a version of their idea in several media. Each medium has different "affordances," or capacities for representing a concept, that make some concepts more easily represented than others. Each medium also provokes a special orientation to the problem to be solved, with the medium itself orienting the child to certain classes of meaning. Experience has shown that children readily learn to make compromises with what a particular medium does not easily afford, and that sequences across media will affect children's success. Children should also be encouraged to revise earlier representations because of discoveries made with more recent representations. (MDM)