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Montessori had total control over her method, apparatus, schools, and teacher training. After her lecture tour (1913 in California), Montessori gave McClure power of attorney and returned to Italy. The American entrepreneurial spirit and the desire to expand the Montessori method quickly led to significant conflicts between the Italian educator and American businesspeople (McClure). Feeling betrayed, Montessori ended her relationship.
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The decline was due to language barriers, travel limitations forced by World War I, an anti-immigrant sentiment, and public criticism by few influential educational leaders.
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Nancy McCormick Rambusch attends the Tenth International Montessori Congress (AMI) to learn more about the Montessori Method. Met Mario Montessori who invited her to take the training and bring the method to the USA
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Nancy McCormick Rambusch completed her training (EC and LE) in London. After this, she conducted classes in her small apartment in New York.
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Nancy McCormick Rambusch opens a Montessori School in the United States (Connecticut). She becomes the Head of the School.
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Mario Montessori named Nancy McCormick Rambusch, representative of AMI in the United States.
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Nancy McCormick Rambusch founded the AMS. Goals: support efforts to create schools, develop teacher education programs, and publicize the value of Montessori education. Whitby School also became the first certified Montessori teacher training program in the U.S.
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People look for advice from AMS on starting schools and study groups.
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It marks the exponential growth of the Montessori advocacy.
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AMI and AMS parted ways in 1963, mostly over disagreements regarding teacher preparation.
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Cleo Monson becomes the first executive secretary of AMS.
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To all affiliated schools
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AMS worked with the Comité Hispano Montessori (nonprofit Montessori organization which provided a communication network and services for educators in Spanish-speaking communities United States, Mexico, the Caribbean, and Central and South America)
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Cleo Monson is appointed First National Director of AMS and holds it until her retirement in 1978.
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The First International Symposium (Athens, Greece).
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MACTE accredits Montessori Teacher Education Programs to improve their quality and assure the public of their quality.
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Initially founded by AMS (2012), NCMPS became an independent organization (2015). Its mission is to grow and support Montessori education in public schools.
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AMS and AMI/USA joined to work on public policy issues to provide a unified voice in advocacy and public policy.
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The American Montessori Society is the largest organization in the world dedicated to the Montessori method, with more than 1,461 affiliated schools and almost 96 teacher-education programs.
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First AMS Training the Trainers Course
