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The 2024 Sustaining Fund kicks off this week at Keystone with Spirit Week! Keyston...

As we welcome the arrival of spring, it is not only a time of blossoming flowers a...

One unique aspect of the authentic Montessori experience at Keystone is the 3-year...

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Updates From Ms. Laura & Mr. Stefan


We would like to wish our Keystone Families, students, and staff a well-deserved summer break! As our 2023/24 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 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 throughout the school year 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. The administration team at Keystone will continue to work for the benefit of our students over the next two months, and we look forward to welcoming 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





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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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