Our Mission: At Andover School of Montessori, we nurture each child’s potential, fostering respect, critical thinking, curiosity, and independence in a diverse, student-centered environment. Guided by Montessori principles, we prepare students to be capable, compassionate, and engaged members of their communities.
Andover School of Montessori by the Numbers
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1975
ASM Opened its Doors
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142
Students Served
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71%
Student Diversity
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19
Communities Represented

71%
Montessori Trained Full-Time Faculty
Accreditation
ASM is fully accredited by the Association of Independent Schools in New England (AISNE) and the American Montessori Society (AMS). We are also a member of the National Association of Independent Schools (NAIS).
Student Body
- Children ages 2.9–5 years old in the Children’s House (preschool & kindergarten)
- Students must be 2.9 years old by September 1.
- To enter Kindergarten, children must be 5 years old by September 1.
- Children should be fully toilet trained.
- Lower elementary (grades 1-3)
- Upper Elementary (grades 4-5)
- Middle school (grades 7–8)
Geographic Representation
ASM draws families from 20 cities and towns:
Daily Schedule
- Children’s House (ages 2.9–5 years old): 8:30–11:30 am, 12:15–3:15 pm or 8:30 am–3:15 pm
- Elementary: 8:15 am–3:15 pm
- Middle School: 8:10 am–3:15 pm
- Before School Care: 7:30–8:30 am
- After School Care: 3:30–6:00 pm
Tuition & Fees
| Program | Tuition | Activity Fee | PACE Dues |
|---|---|---|---|
| Children’s House Half Day – AM | $15,890 | $125 | $100/family |
| Children’s House Half Day – PM | $12,795 | $125 | $100/family |
| Children’s House Full Day | $23,350 | $250 | $100/family |
| Kindergarten Full Day | $23,445 | $250 | $100/family |
| Lower Elementary | $25,040 | $375 | $100/family |
| Upper Elementary | $25,625 | $875 | $100/family |
| Middle School | $26,400 | $2,325 | $100/family |
Tuition is set yearly by the Board of Directors in January. Tuition may be paid in full at the time of enrollment, or a deposit paid upon enrollment followed by monthly installments administered through Blackbaud Tuition Management. The deposit amount is determined by the date of enrollment:
- Prior to July 1, 2025: 10% of the total amount of tuition
- July 1-30, 2025: 20% of the total amount of tuition
- August 1-31, 2025: 30% of the total amount of tuition
- September 1-30, 2025: 40% of the total amount of tuition
- October 1-31, 2025: 50% of the total amount of tuition
- November 1-30, 2025: 60% of the total amount of tuition
- December 1, 2025 and beyond: 100% of the total amount of tuition
Monthly installments begin in April and end in December. Families interested in enrolling mid-year should consult the Admission Office for a schedule of tuition, fees and payments.
Admissions Process
- We enroll students for an a academic year (late August/earlySeptember – June).
- If space is available, we will enroll after the start of school.
- Application deadline: January 31
- Application fee: $60




