Welcome to Cornerstone, a Montessori school serving children in the Seacoast region of New Hampshire. We are committed to laying the foundation upon which each child can build, to become the architect of his or her own future.
Cornerstone At A Glance
Cornerstone Classes
Cornerstone Faculty
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Administration

TODDLER HOUSE

Primary

Lower Elementary

Upper Elementary

Junior Class

Children's House

Enrichment

Admissions
Our application processes is designed to help you make an informed decision about your student’s education. Cornerstone has rolling admissions and will admit students throughout the year based on space available and appropriate placement.
The goal of early childhood education should be to activate the child's own natural desire to learn.
~ Maria Montessori