Welcome to Cornerstone Montessori School,
Preschool and Kindergarten.
Cornerstone Montessori is a preschool and Kindergarten located in Kitsap County, Washington. We are located just off SR3 freeway above the new “Trails” shopping center (corner of Greaves Way and Old Frontier Rd NW) easy access from Silverdale, Poulsbo, Bremerton and just minutes from Bangor Base.
All Lead Teachers at Cornerstone Montessori School are Certified Montessori Teachers.
School Calendar
Cornerstone Montessori provides school from September through June. We follow the Central Kitsap School District for Winter/Spring Break and Holidays. A summer program is available, as well. It is run on a weekly basis throughout the summer, to fit around your vacation and other fun activities scheduled.
2026 Opening
We have one opening in our Mon-Thu Afternoon program. Please email for more info cms.kitsap@gmail.com
2026/27 Schedule
4-day Program
Monday – Thursday
Morning Class: 8:30 – 11am
Afternoon Class: 12:30 – 3pm
Tuesday – Friday
Morning Class: 8:45 – 11:15am
Afternoon Class: 12:45 – 3:15pm
Extended Class: 8:45-12:45 or 11:15-3:15. Ages 4-6 years to be eligible for the extended program Tuesday – Friday
5-day program – Must have 1 yr prior education. Ages 4-6yr old
Monday – Friday
11am – 3pm
Monday through Friday (By Application Only. Requires 2 weeks of summer school for observation). Must have 1 year of prior education.
Contact Us
10730 Old Frontier Rd NW
Silverdale, WA 98383
Mailing Address:
PO Box 1396
Silverdale, WA 98383
360-698-5583
cms.kitsap@gmail.com