We are committed to...
  • encouraging diverse points of view.
  • continuous reflection and on-going improvement.
  • collegial relationships and ethical leadership.
  • independent education options for families.
  • promoting the independence of our schools.
  • quality standards without standardization.
  • assisting schools in fulfilling their missions.
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Three Tree Montessori


Website www.threetree.org
Address 220 SW 160th Street
City Burien
State WA
Postal Code 98166
Phone 206-242-5100
PK-K
Elementary
Program Type Montessori
School Type Day
Summer Programs

Upcoming Events
  • March 2020
    • SatMar28 French Immersion School of Washington Open House 10:00 AM to 12:00 PM4211 W. Lake Sammamish Pkwy SE, Bellevue, WA 98008Join us to learn about our preschool through fifth grade bilingual immersion program and to meet our teachers, parents, and alumni.
    • MonMar30 Gig Harbor Academy Parent Tours 6820 32nd St. NW., Gig Harbor, WA 98366

      Come by and take a tour of the campus and explore all that Gig Harbor Academy has to offer. To book a tour please call us at 253-265-2150 or email us at admissions@gigharboracademy.org.

  • Guiding
  • Inspiring
  • Advancing
Northwest Association of Independent Schools
5001 California Ave. SW, Suite 112
Seattle, Washington 98136
T: 206.323.6137 • info@nwais.org
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