RPMS provides toddler, preschool and extended day (Kindergarten), elementary and middle school programs in the Montessori method for children ages 2 through 14.

Children are placed in multi-age classes, a fundamental hallmark of Montessori education. These mixed age groups provide for peer teaching, role models and leadership experience, and an enhanced sense of community within the classroom. By interacting with children of varying ages, a child learns to understand and respect her place in a community that extends beyond the students in her same "grade."

As a younger member of the classroom community, the child learns from observing and interacting with older classmates. By the time the child becomes an upperclassman, learning is reinforced by providing an example to younger children. Multi-age classrooms permit a child to build a special, long-term relationship with teachers, which cultivates a sense of belonging to a learning community.