Children's Own School has been a Montessori preschool tradition since 1942. We provide a carefully planned, stimulating Montessori environment to help children develop within themselves the foundational habits, attitudes, skills and ideas which are essential for a lifetime of creative thinking and learning. COS recognizes that each child has a unique nature and, with that, the capacity to become a successful learner.
We promote opportunities for independence, perseverance, and creativity. We guide children to self-directed learning and discovery. We emphasive kindness and graciousness in our classroom communities.
We believes that parents and teachers are partners working together for the benefit of each child.
Our primary goal is to provide each child with an excellent Montessori education using the principles established by Dr. Maria Montessori and sanctioned by the Association Montessori Internationale.
Quick Facts (2025-26)
- School Type: Montessori School
- Grades: Prekindergarten-Kindergarten
- Enrollment: 86 students
- Yearly Tuition: $20,300
- Average class size: 20 students
- Application Deadline: Jan. 31
- Source: Verified school update
School Overview
School Type
Religious Affiliation
Grades Offered
Grades Prekindergarten-Kindergarten
Year Founded
1942
School Calendar
Student Body
Total Students
86 students
Student Body Type
Co-ed
% Students of Color
27%
State avg.: 31%
Students by Grade
Academics and Faculty
Total Classroom Teachers
7 teachers
Student-Teacher Ratio
12:1
National avg.: 13:1
% Faculty w/Advanced Degree
70%
Average Class Size
20 students
Classroom Dress Code
Casual
Tuition and Acceptance Rate
Admission Deadline
Jan. 31
Yearly Tuition Cost
$20,300
% on Financial Aid
13%
Application URL
School Notes
- We serve 89 children in 4 primary classrooms (2.9 - 6.0 years old) and 1 preprimary program (children 22 months-2.8 months). All classrooms are staffed with a Montessori trained teacher and a classroom assistant. We offer half day, school day, and limited extended day enrollment options.
Source: Verified school update
Frequently Asked Questions
How much does Childrens Own School cost?
Childrens Own School's tuition is approximately $20,300 for private students.
When is the application deadline for Childrens Own School?
The application deadline for Childrens Own School is Jan. 31.
Related Schools
Show me:
People that viewed Childrens Own School also viewed these schools: Tufts Educational Daycare Center, Cambridge Friends School, Boston Children's School, Kingsley Montessori School and The Greenhouse School.
The nearest high school to Childrens Own School is Arlington Catholic High School (1.7 miles away)
The nearest elementary school is St. Raphael School (1.2 miles away)
The nearest preschool is St. Mary's School (1.1 miles away)
Show me:
Show me:
School
Location
Miles
Quick Facts
Tufts Educational Daycare Center
Daycare / Preschool
165 Holland St
Somerville, MA 02144
(617) 627-3412
Somerville, MA 02144
(617) 627-3412
2.8 miles
Gr: PK-K | 44 students
5 Cadbury Road
Cambridge, MA 02140
(617) 354-3880
Cambridge, MA 02140
(617) 354-3880
3.5 miles
Gr: PK-8 Sports: 3 | Extracurrculars: 8 Tuition & acceptance rate listed
8 Whittier Place
Boston, MA 02114
(617) 367-6239
Boston, MA 02114
(617) 367-6239
6.1 miles
Gr: PK-3 | 31 students Avg. class size: 8 students Acceptance rate listed
26 Exeter Street
Boston, MA 02116
(617) 226-4927
Boston, MA 02116
(617) 226-4927
6.7 miles
Gr: NS-6 | 301 students Avg. class size: 17 students Sports: 14 Tuition listed
145 Loring Ave
Salem, MA 01970
(978) 745-4549
Salem, MA 01970
(978) 745-4549
12.8 miles
Gr: NS | 20 students
School Reviews
5 3/1/2024
I attended this school from 1964 to 1966, and I loved it! It's nice to see that it's still in the same big old house surrounded by huge trees.
Endorse Childrens Own School. Endorsements should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
- Academic or athletic awards
Recent Articles
Student Success Predictors at Community Colleges
A practical guide to student success predictors at community colleges for private school advisors helping graduates navigate two-year pathways.
Career Pathways with Community College for Private School Grads
Explore top career pathways with community college for private school graduates, including high-demand jobs, transfer options, and 2025 workforce trends.
Navigating the FAFSA & Financial Aid Timeline for Community College
Learn how to navigate FAFSA and financial aid timelines when starting at community college — from application to disbursement in 2025.
