AMI vs Non-AMI Montessori Schools: What’s the Difference?

Not all Montessori schools are the same. While many use the Montessori name, programs can vary widely in how closely they follow Dr. Maria Montessori’s original method.

AMI (Association Montessori Internationale) was founded by Dr. Montessori in 1929 to protect the integrity of her work. AMI sets global standards for teacher training, classroom materials, and curriculum, ensuring an authentic Montessori experience.

Non-AMI Montessori schools may be Montessori-inspired but are not required to follow these standards. They may blend Montessori with traditional teaching, use modified materials, or follow a less consistent curriculum.

Key differences often include:

• Teacher training: AMI teachers complete rigorous, internationally recognized training.

• Materials: AMI classrooms use carefully designed, approved materials.

• Curriculum: AMI programs follow clear developmental learning cycles.

• Classroom structure: Authentic Montessori balances freedom with clear limits and uses mixed-age groupings.

At Manor Montessori, our Casa and Elementary teachers are AMI trained, and our classrooms are guided by AMI principles and equipped with AMI-approved materials. This ensures a calm, purposeful learning environment where independence, confidence, and a love of learning can flourish.

Understanding these differences can help families choose a program that truly aligns with Montessori values.