Toddler program

"Keystone Montessori is exactly the experience I hoped for. Not only is it AMI certified, the teachers are so compassionate and supportive of the children. Right now the children are really loving their gardens and eating the fruits of their labors. I know the children are getting the attention they need to be a productive humans in society."

~Lauren R.                                                                                                                                                   

Toddler Program
Toddler program
Child at chalkboard

"This is a fun place to learn where our daughter has excelled. The staff are attentive, the environment is accommodating, and the community is strong."

~Amanda V.

Primary Program
Child at chalkboard
Child in classroom

"My children are happy and thriving in school. There has always been a great sense of family and community at Keystone that is not easy to find. I feel confident that the guides and staff have the childrens’ best interests in mind in all decisions they make." 

- Lauren M.

Elementary Program
Child in classroom
Child in library

"This school fosters independence, social learning, and most of all, encourages the flame of the love of learning. So often in traditional school settings the rigid nature of the curriculum and the over-focus on "points" kills children's intrinsic motivation to learn, so that when they get to college the light in their eyes has gone out and they care only about grades. I'm so happy that this wonderful school exists, and that it goes through the upper levels. Montessori is not just for preschool--it's for all ages."

~Rebecca B.

Adolescent Program
Child in library
Class photo on lawn

"We love the supportive learning environment for the children. There is a focus on instilling a love of learning in the children. The school is much more than just a place for teaching and learning."

~Eric C.

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Now Enrolling at Keystone

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Sustaining
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Why We Give

The Keystone Blog

Keystone Calendar

Latest News

Keystone Yearbook Orders Due April 24th!

April 4, 2025

Order Your 2024/25 Keystone Yearbook Today! Deadline to Order is April 24th! Click HERE...

Annual Children's House Peace Program is a Huge Success!

March 6, 2025

Each year at Keystone, our Children's House students take center stage with the Pea...

The 6th Year Montessori Student

February 5, 2025

The 6th grade year is not only the last year of the elementary cycle; it’s t...

Watch Me!

Upcoming Events

Great Horned Owls/Red-tailed Hawks Trip

Start: May 12, 2025 End: May 13, 2025

Multi-Day Event

After-School Music Classes

May 12, 2025 3:00 PM - 6:00 PM

Iguanas & Scorpions Trip

Start: May 13, 2025 End: May 14, 2025

Multi-Day Event

After-School Music Classes

May 13, 2025 3:00 PM - 6:00 PM

Kindergarten Fly-Up Ceremony

May 20, 2025 6:00 PM - 7:00 PM

8th Grade Promotion

May 21, 2025 6:00 PM - 7:00 PM

Last Day/Early Release/No Extended Care

May 22, 2025 11:40 AM - 12:00 PM

Pick Up Times: Elementary and Adolescent - 11:40 am/ Toddler and Children's House - 12:...

Staff Preparation/No Extended Care

May 23, 2025

All Day Event

Memorial Day/No Extended Care

May 26, 2025

All Day Event

View calendar

Updates From Ms. Laura & Mr. Stefan

As our 2024/25 school year draws to a close, we reflect on our time together, and I am amazed at how quickly it seems to have passed us by. Our community is a constant source of pride, and we are grateful for your continued support.

This year brought an abundance of joy and has left me with a grateful heart as I look back on the memories made. We were blessed with your generosity at the Fall Festival, during the Sustaining Fund, and events throughout the year. It was a joy to witness the community come together for many class celebrations and events, including the Peace Program, class plays, potluck dinners, community meetings, and Movie Night this spring. Our students made memories with their class activities, going outs, and fabulous trips as we closed the year. The Keystone community seems to bring out the very best in all of us.

Please take some time for rest and rejuvenation this summer. While our students enjoy their break, our administrative team will continue working behind the scenes in preparation for another great year ahead. We can’t wait to welcome everyone back to campus in August!

Please accept our gratitude, good wishes, and thanks for a wonderful school year.

 

In Health and Peace,

 

Laura Hertzler                            Stefan Linder
Head of School                          Associate Head of School

 

 

 

 

Community Sponsors

NOTICE OF PUBLIC MEETINGS

Per A.R.S. § 38-431.02. Notice of meetings for the Board of Directors of Keystone Montessori Charter School and any of its committees will be posted on this website under Explore Keystone – School Board – Meeting and Agendas. Notices will also be posted on the Lobby Bulletin Board, 1025 E. Liberty Lane, Phoenix, Arizona 85048, which is open to the public between 7:30 a.m. and 5:30 p.m. Monday through Friday.

 

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