Keystone Montessori School

Keystone Montessori School KMS provides authentic Montessori education to children ages 3 months through 6th grade
State childcare vouchers accepted

With large classrooms, multi-purpose community space, art room, and library, all housed in 17,000 square feet of newly-renovated space, every child enjoys an individualized education designed for them to explore and follow their passions. From infancy through preschool, kindergarten, and up through grade six, children develop their inner motivation by working with materials that engage them. Every Montessori material is designed to teach a concept, so children learn as they play with our handpicked materials. All our classrooms have Montessori-trained head teachers, and experienced classroom assistants. Keystone enjoys excellent teacher retention, and has supported hundreds of families, serving children from 3 months to 12 years in age. Visit our school and you'll understand why the founders of Google credit their innovation and creativity to their Montessori education.

09/19/2026

The school year is already underway, but we are still reminiscing on some special summer program memories! Our Children’...
09/16/2026

The school year is already underway, but we are still reminiscing on some special summer program memories!

Our Children’s House students became world travelers. We began by exploring one of the world's most diverse continents and how airports and airplanes connect people across oceans and countries. They discovered that Europe is home to many unique nations and learned about the European Union, opening the door to conversations about geography, culture, and our connected world.

The journey became even more meaningful as their teacher shared miniature landmarks, treasured postcards, and memories from her own travels—including stories from her native country of Slovakia. Seeing authentic keepsakes and hearing firsthand experiences helped transform abstract lessons into meaningful connections, inspiring curiosity about places, people, and traditions beyond their own community.

At Keystone Montessori, we believe cultural exploration helps children develop respect, empathy, and a lifelong appreciation for our beautifully diverse world, one continent at a time.

09/14/2026

Address

55 Middlesex Street
North Chelmsford, MA
01863

Opening Hours

Monday 7:30am - 6pm
Tuesday 7:30am - 6pm
Wednesday 7:30am - 6pm
Thursday 7:30am - 6pm
Friday 7:30am - 6pm

Telephone

+19782512929

Website

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