Association Montessori Internationale (AMI)
Founded in 1929 by Dr. Maria Montessori to maintain the integrity of her life’s work.

Education Bug

International Montessori Council – The Montessori Foundation (IMC)
A world-wide umbrella organization of Montessori schools and the men and women who lead them, own them, or serve on their boards.

North American Montessori Teachers' Association (NAMTA)
Offers Montessori DVDs, books, conferences and classified ads for Montessori teachers, administrators, schools and parents.

Pennsylvania Department of Education