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It’s a common misconception to think of Montessori as being divided into two distinct “tribes,” such as AMI and AMS, each with fixed and opposing characteristics. In reality, Montessori is much broader and more nuanced. In North America alone, there are numerous Montessori organizations, with AMI, AMS, and IMC being the largest. For teacher training programs in the U.S., the key credential to look for is accreditation by the Montessori Accreditation Council for Teacher Education (MACTE). This ensures that the training program meets high standards of quality and effectiveness.

The differences between organizations like AMI, AMS, and IMC reflect some variations in philosophy and practice, but these differences are often overstated. Montessori organizations fulfill many roles: they support schools, develop leadership, promote Montessori education, prepare teachers, and sometimes encourage specific practices or interpretations of Montessori pedagogy.

Philosophical and Practical Differences

  • AMI (Association Montessori Internationale): Founded by Dr. Montessori herself, AMI emphasizes fidelity to her original principles, practices, and lessons. It tends to adhere closely to Montessori’s core methodologies and may emphasize certain materials or approaches with greater consistency.
  • AMS (American Montessori Society): AMS embraces a broader and more inclusive interpretation of Montessori, allowing for differences in implementation and some incorporation of modern educational elements. AMS training often reflects a more diverse set of influences, including greater flexibility for adapting Montessori principles to different contexts.
  • IMC (International Montessori Council): IMC generally aligns more closely with AMI in its emphasis on Montessori’s original philosophy but also incorporates a contemporary perspective that supports practical application in a wide range of schools and communities.

That said, all three organizations share more in common than what divides them. They are united by their commitment to fostering respect for children’s natural development and supporting the spiritual transformation of the adult—a cornerstone of the Montessori approach.

Choosing the Right Training Program

When deciding between AMI, AMS, or another MACTE-accredited program, consider the following factors:

  1. Training Center Rigor: The quality and rigor of individual training centers can vary within any organization. Research the reputation and approach of the specific center you’re considering.
  2. Budget: Training programs can differ significantly in cost. Make sure the program aligns with your financial resources.
  3. Personal Learning Style: Some training centers emphasize hands-on practice, while others may focus more on theoretical discussions or group learning. Choose a program that matches your preferred way of learning.
  4. Long-Term Goals: If you aim to work in a particular type of Montessori school (e.g., AMI-affiliated, AMS-accredited, or independently Montessori), align your training choice with their requirements or preferences.

The Heart of Montessori

Finally, remember that learning Montessori lessons and philosophy is only part of the journey. Montessori education is fundamentally about how we connect with children and families, and how we conduct ourselves in the presence of children. This is often referred to as the spiritual transformation of the adult—the deep personal growth and humility required to truly guide and nurture children as they explore and discover their world.

Rather than focusing solely on organizational affiliations, look for a training program and community that resonates with your values, inspires you to grow, and prepares you to make a meaningful impact in the lives of children and families.