The organization of the physical environment is crucial to Reggio Emilia's early childhood program, and is often referred to as the child's "third teacher". Major aims in the planning of new spaces and the remodeling of old ones include the integration of each classroom with the rest of the school, and the school with the surrounding community. The importance of the environment lies in the belief that children can best create meaning and make sense of their world through environments which support "complex, varied, sustained, and changing relationships between people, the world of experience, ideas and the many ways of expressing ideas.