The 3809 House has been a Montessori school since 1976.  

In 1991, Arlington Montessori House was created.  Through the years, the school has built a positive reputation in Arlington.  In 1997, a second classroom opened doubling the AMH population.  AMH solidified the committment to serving the children as an Association Montessori Internationale (AMI) recognized school and remains steadfast in that commitment today.  In 2016, the school unveiled its new logo and website to properly represent the high-quality Montessori education we provide and AMH's commitment to serve the Arlington community today and for the next 25 years.  Formerly referred to as the "Hippo House", our unwavering promise as a small, nurturing community continues as Arlington Montessori House.