Founded in 1964, Montessori School of Waukesha is the oldest and largest Montessori school in Waukesha County. Over the years, the school has built a solid reputation of excellence in the field of early childhood, elementary and adolescent education. The Montessori School of Waukesha is an AMS accredited school, and has educated preschool, elementary and adolescent students for over 50 years. The school is NCA Accredited (NCA CASI is an accreditation division of AdvancED) and member of the North American Montessori Teachers’ Association. Montessori School of Waukesha offers a full range of programs for children ages 20 months to 8th grade grouped according to children’s developmental phase.