School Membership

For Montessori schools, AMS membership is a way to endorse and engage with the world’s foremost supporter of quality Montessori education. 

School membership is available to any Montessori school that agrees to comply with the AMS Code of Ethics.

Level of Membership

AMS offers 3 levels of membership for schools: GMS is a Full Member School.  This is the highest level of school membership. Only schools at this level are eligible to apply for AMS accreditation, a widely accepted validation of quality Montessori education.

Below are the current requirements for Full Member Schools, along with new requirements that will go into effect on July 1, 2020. 


All classroom lead teachers must hold Montessori credentials for the level(s) they are teaching.

The credential must be issued by a teacher education program accredited by the Montessori Accreditation Council for Teacher Education (MACTE). Currently AMS is the only organization with MACTE-accredited teacher education programs that offer Secondary credentials.

AMS Code of Ethics