Stats, Facts and Test Scores

Valley Montessori School was founded in 1976.  We are a private, non-profit, authentic Montessori school serving more than 400 students ages 18 months through 8th grade offering a 10 month school year plus 8 weeks of summer camps. We are accredited by the American Montessori Society (AMS), the Western Association of Schools and Colleges (WASC) and the California Association of Independent Schools (CAIS). In addition, VMS is a California Certified Green Business making us the only school in the Tri-Valley and just one of three in the state of California with this distinguished honor.

According to our 2019 Parent Survey, our parents believe their VMS children :

  • are motivated to learn – 92%
  • enjoy school – 94%
  • develop independence  – 96%
  • are respected & valued – 96%

Click here for our 2019 Annual Report.


Below are the results of our Stanford Achievement Tests (nationally normed). They are an impressive affirmation of the academic success of our students in grades 3 – 8. We administer the test to 2nd grade students as well; however, since it is their first year taking the test, we do not report those results.

It’s important to know that we do not teach to these tests and, of course, they only measure a small slice of what children learn here at Valley Montessori School.

Attributes not measured which we find equally important include:

leadership, collaboration, compassion, respect for others, kindness, peace-making, independence, creativity, intellectual curiosity and a strong sense of their own talents and interests.

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