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St. Mary's Montessori Schools

Strong in Spirit, Steady in Purpose

The Rancho Campus
The Rancho Campus
The North Fontana Campus
The North Fontana Campus

Welcome

At St.Mary’s Montessori School, we are committed to excellence in providing compassionate personalized care through mutual trust and respect, education, leadership, and service. Our Mission is to nurture and celebrate each child's academic and social abilities, fostering a lifelong love for learning, guided by the principles of Dr. Maria Montessori and grounded in the teachings of the Catholic faith.

more about our mission

  • Blue geometric wooden shapes, including spheres, cylinders, cones, and rectangular blocks, arranged on a white table in a classroom setting with shelves in the background.

    About Montessori

    The Montessori method, it is a unique method of education that focuses on and caters to the individual development of each child.

    learn more about Montessori

    why choose Montessori?

  • A child's hand is drawing and writing on graph paper with a red colored pencil, with the child's other hand resting on the paper.

    Academic Programs

    The Montessori environment offers quality, purposeful work for children to engage in. Each day, students are presented with lessons that are age-appropriate and challenge them to grow as critical thinkers and global citizens.

    more about our programs

  • "Best decision we have made for our son and as a family! Just in 3 months since enrolling our 2 year old son, we have seen such a huge difference in his social skills."

    — Natalie

  • "My daughter is 8 years old and just starting 3rd grade. She has been attending St. Mary's since she was 3 years old. We love everything about her school! The Teachers and staff are all so amazing and truly love our children. I have never had to worry about her while in their care. "

    — Jennifer

  • "Our oldest had the most amazing experience at St Mary's Montessori elementary program. He joined as a first grader and within the first few months, we saw him soar in his reading, math and language skills. By the end of his first year, he had made tremendous progress both academically and socially "

    — Gwenda

  • "My son has attended St. Mary's since pre-k. He is now finishing his 2nd year of the elementary program and I am so impressed with his worldly knowledge and academic progress. He has been exposed to higher learning concepts that he wouldn't have been in traditional public school. The biggest thing that I love about St. Mary's is that they have fostered a love of school and learning for him. He wakes up happy to go to school every day. I'm very glad we decided to begin his educational journey here."

    — Kelly