Dr. Maria Montessori was an Italian physician and educator who developed an influential method of education centered on the child. She believed that children should be free to explore their environment and learn through their senses. Montessori observed that children progress through sensitive periods of development from infancy through adolescence where they are naturally drawn to different types of learning activities. According to Montessori, the role of the teacher is to prepare an environment to support each child's development and act as a guide, allowing children to learn independently as much as possible.