The Montessori method is a child-centered educational approach that celebrates and nurtures each child's intrinsic desire to learn. In Montessori classrooms children make creative choices in their learning, while the classroom and the teacher offer age-appropriate activities to guide the process. Children work in groups and individually to discover and explore knowledge of the world and to develop their maximum potential. Environment is prepared before the child enters into the casa. The environment is prepared in every way for optimal development: physically, cognitively, socially and emotionally. Environment is prepared according to the child needs with scientifically designed material. These materials are kept in an order. This external order lets the child to create an internal order which ultimately leads to development of the intelligence. Children move freely throughout the environment, choosing activities that interest them, or working with the teacher, individually, or in small groups. Their movement is unrestricted by the teacher unless it endangers themselves, other people, or their surroundings.