Cedar River Montessori School fosters the innate curiosity of the child, presenting learning experiences that cultivate independent, creative thinkers who continuously build their understanding of themselves and the world around them.

List of 3 items.

  • Farm Conservation in Action

    We steward the health of our animals, water, and pastures through our Farm Conservation Plan.

  • Accredited Montessori Education in South King County

    Serving ages 3 through grade 8, Cedar River Montessori is the only American Montessori Society-Accredited Montessori school in the Seattle metro area south of I-90.

  • Our campus is a Washington State Stewardship Forest

    Students make transformative connections with the natural world in our 12-acre classroom. Learn more about our 12-Acre Trails and Forest Restoration Project.

Recent News

List of 1 news stories.

  • Outdoor ed students explore some of the smallest creatures on campus

    Early childhood and lower elementary students are learning about zooplankton and phytoplankton in March. These tiny creatures can be found in the Cedar River and in the wetlands on campus, and they play an important role in the aquatic food web. Scientists estimate that phytoplankton provide between 50-80% of all the oxygen on Earth, and plankton are a wonderful part of many aquatic ecosystems. Now is a great time to begin learning about these tiny floating friends! 
Read All News

Admissions Events

List of 3 events.

View All Events

  • Cedar River Parent

    The staff and environment blend so well, I wish I had this when I was younger!

  • Cedar River Parent

    "This is our first year at Cedar River Montessori and we love it... even in the midst of a pandemic! We can tell our 3-year old is thriving by the way he talks about his classroom and teachers and by the huge smile on his face when pick him up in the afternoon. His teachers are supportive, creative, and keep open lines of communication."

  • Selena, '18

    I really feel like I stand out at [high] school academically and have a deeper understanding of the world than my classmates, and I am very grateful for that.

  • Whitney, '98

    I am an ICU nurse and I always want to know how and why things work the way they do, which is a huge part of my role in the ICU. I feel CRMS gave me the tools and the drive to ask questions and never stop learning.