Dr. Montessori observed that children experience sensitive periods, or windows of opportunity, as they grow. As their students develop, Montessori teachers match appropriate lessons and materials to these sensitive periods when learning is most naturally absorbed and internalized.
In early childhood, Montessori students learn through sensory-motor activities, working with materials that develop their cognitive powers through direct experience: seeing, hearing, tasting, smelling, touching, and movement.
In the elementary years, the child continues to organize his thinking through work with the Montessori learning materials and an interdisciplinary curriculum as he passes from the concrete to the abstract. He begins the application of his knowledge to real-world experiences.
This organization of information—facts and figures—prepares the child for the world of adolescence, when thought and emotion evolve into understanding more abstract, universal concepts such as equity, freedom, and justice.