Cornerstone Montessori
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Cornerstone serves children twelve months through 5th grade through various academic and after schoo Visit our webpage for more information
10/25/2025
We are ready for Trunk or Treat!
10/21/2025
Lower & Upper Elementary students are hard at work this year! Message us if you have a 1st through 6th grade student who would benefit from individualized learning. The Montessori approach fosters critical thinking, problem-solving, and a lifelong love of learning by integrating subjects and allowing students to work without interruption.
08/31/2025
08/30/2025
We are at Loyalty Park until 12!!
Click here to claim your Sponsored Listing.
Category
Telephone
Address
1644 Gault Street
Sumner, WA
98390
Opening Hours
| Monday | 6:30am - 5:30pm |
| Tuesday | 6:30am - 5:30pm |
| Wednesday | 6:30am - 5:30pm |
| Thursday | 6:30am - 5:30pm |
| Friday | 6:30am - 5:30pm |
