The Oneness-Family School is an education management company based out of United States. Oneness-Family School is a non-profit Montessori school serving students from preschool through high school in Chevy Chase, MD. Our Lower School (Age 2—Grade 8) is located in Chevy Chase, Maryland, blocks away from the Bethesda Metro station. Our High School is located in Kensington, Maryland on Connecticut Avenue, situated on a wooded campus on several bus lines.