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Business Details
47 Years
experience
Trusted Montessori Education in San Jose
Founded in 1979, One World Montessori has dedicated over four decades to delivering a comprehensive Montessori education rooted in Dr. Maria Montessori's philosophy. Our mission centers on cultivating independent, self-reliant individuals equipped to contribute meaningfully to society through empathy, creativity, and critical thinking. With three campuses across the San Francisco Bay Area, we serve children aged 2-12 while offering accredited teacher training programs that uphold Montessori's vision for peaceful human development.

Our faculty comprises Montessori-certified educators committed to continuous professional growth, ensuring students receive instruction grounded in both traditional Montessori principles and contemporary educational practices. We maintain affiliations with leading Montessori organizations, including MACTE accreditation, while serving diverse communities from San Jose to San Francisco.
Services
Montessori Primary School Montessori Elementary School Teacher Training Program Summer Enrichment Parent Education
Details
  • Year established: 1979
Highlights and features
  • Montessori-certified educators with decades of specialized experience
  • Three campuses serving Silicon Valley communities since 1979
  • MACTE-accredited teacher training program established in 1972
  • Culturally diverse curriculum with foreign language instruction
  • Commitment to accessible Montessori education through nonprofit status
Associations and certifications
  • Montessori Accreditation Council for Teacher Education (MACTE)
What people say
Appreciation of diversity Creative learning environment Lifelong friendships Dedicated teachers Strong community
Services
Montessori Primary School
Our Montessori Primary School serves children aged 2 through kindergarten, focusing on sensory-based learning and independence development. Using authentic Montessori materials, we cultivate foundational academic skills while emphasizing social-emotional growth. The program prepares children for elementary education through structured yet flexible learning environments that respect individual developmental timelines.
Montessori Elementary School
The Montessori Elementary School serves grades 1-6 with an integrated curriculum emphasizing critical thinking and interdisciplinary learning. Our approach combines Montessori principles with modern educational standards, fostering academic mastery through hands-on exploration. Students develop research skills, collaborative problem-solving abilities, and a deep understanding of global citizenship.
Teacher Training Program
Our MACTE-accredited Teacher Training Program offers comprehensive Montessori education for primary-level educators. Established in 1972 by AMI-trained instructors, the program emphasizes spiritual development and peaceful coexistence principles. Trainees gain practical experience through classroom observation and supervised practice with authentic Montessori materials.
Summer Enrichment
Summer Enrichment programs provide continued Montessori learning during school breaks for ages 2-12. Activities maintain Montessori principles while incorporating seasonal themes and outdoor exploration. The program supports continuous skill development and social interaction in a structured yet flexible environment.
Parent Education
Parent Education initiatives include workshops and resources to extend Montessori principles into home environments. We provide guidance on child development, effective communication, and creating supportive learning spaces. These programs strengthen the home-school connection through shared educational philosophies.
People
Ursula Thrush
Founder
Established the Maria Montessori Teacher Training Center in 1972 after AMI training in London and Bergamo. Mentored hundreds of Montessori educators before passing leadership to Rebecca Keith and Susan Cohn in 1983.
Rebecca Keith
Director
Co-Director of MMTTC since 1983 with extensive Montessori classroom experience. Recipient of the 2015 Distinguished Dissertation Award from the American Montessori Society for research on Montessori student development.
Susan Cohn
Educational Director
Montessori educator for nearly 50 years, previously directing teacher training programs. Currently leads Polestar Gardens Summer Camps and intergenerational wellness initiatives while maintaining MMTTC's educational standards.
Questions
What age groups does One World Montessori serve?
We provide Montessori education for children aged 2 through 12 years, covering primary (ages 2-kindergarten) and elementary (grades 1-6) programs.
Are your teachers Montessori-certified?
All Montessori teachers hold Montessori certifications, with assistants completing preschool teacher training and ongoing Montessori professional development.
Do you offer summer programs?
Yes, we provide Summer Enrichment programs at all campuses maintaining Montessori principles through seasonal activities and outdoor learning experiences.
What teacher training options are available?
Our MACTE-accredited Primary Course (ages 2-6) offers comprehensive Montessori teacher education established in 1972 with practical classroom experience components.
How do you incorporate cultural education?
Our curriculum emphasizes cultural diversity through language instruction, international celebrations, and global awareness activities that help children appreciate different heritages.
What locations are available for enrollment?
We operate three campuses in San Jose: Foxworthy Avenue (primary & teacher training), Pearl Avenue (elementary), and Leigh Avenue (primary), serving families across Silicon Valley.