The Primary Montessori Day School is a private, non-sectarian, co-educational school for children age two through nine years old in Rockville, Maryland. We offer a unique full-day Montessori curriculum designed for busy families that want their children to learn, grow, and succeed . Here at the Primary Montessori Day School children are encouraged, engaged and inspired to maintain a thirst for knowledge as they grow. We are dedicated to giving your child the social, academic, and leadership skills they need to reach their potential through Montessori teaching and Montessori trained teachers.