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Lexington Montessori School

United States, Boston

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The school at a glance
Instructs in English
Fees $28,641 - 45,535
Ages 2 - 14 years
Type Co-educational
Opened 1963
Bus Service No
Academic offering
Curriculum Montessori Curriculum
Taught languages Spanish
Strengths Outdoor Education, Languages, Service and Sustainability
Clubs Community and Service, Cultural and Language, Leadership and Professional
Stages Preschool, Kindergarten, Elementary, Middle School
Introduction

Lexington Montessori School is an independent day school serving children from 21 months to 14 years. It delivers Montessori pedagogy in classrooms guided by certified Montessori educators, with students learning through self-discovery. The curriculum spans Practical Life, Sensorial, Math, Language and Cultural Studies, and integrates anti-bias education across all learning. In addition to core Montessori work, students participate in art, farming, library, music, physical education and a Spanish language program. The campus hosts METTC, the Montessori Elementary Teacher Training Collaborative, on site for eight weeks each summer, and Horizons@LMS as a Horizons National affiliate. The community emphasizes outdoor learning, Diversity, Equity, Inclusion and Belonging, and maintains small class sizes with an average 6:1 ratio. The 23-acre campus includes 19 acres acquired in 2018 with woods, streams and wetlands, plus an A-Frame meeting space, a greenhouse and a farming program. Outdoor field studies and service projects broaden civic awareness and environmental stewardship.

130 Pleasant St, Lexington, MA 02421, United States

The Essentials

Lexington Montessori School has instruction in English.

Location
Boston area, Massachusetts. It serves children ages 21 months through 14 years (toddler through middle school). The campus includes four acres of play yards and school buildings and 19 acres of undeveloped woods and wetlands.

Stages
Toddler; Children's House; Lower Elementary; Upper Elementary; Middle School

Type
Independent day school
Diving Deeper

Boarding Arrangements
Independent day school; no boarding offered.

Governance and Ownership
Board of Directors governs the school. The Board consists of fourteen to seventeen volunteer members elected by the LMS Corporation, which comprises all parents of children currently enrolled. The Head of School and a LMS Parent Community Representative are voting Board members.
Fees

Annual tuition at Lexington Montessori School ranges from USD 28,641 to USD 45,535 for 2026/27.

Tuition (2026–2027 academic year)

- Toddler (ages 1.9–2.11): Half day USD 30,470 • Full day USD 39,085.
- Children's House (ages 3–6): Half day USD 28,641 • Full day USD 36,899.
- Lower Elementary (Grades 1–3): Annual tuition USD 39,121 (full-day).
- Upper Elementary (Grades 4–6): Annual tuition USD 41,565 (full-day).
- Middle School (Grades 7–8): Annual tuition USD 45,535 (full-day).

Per-term / per-installment detail

- Annual tuition rates are published for each program as shown above. The school's publicly available tuition information gives annual figures and does not publish fixed per-term amounts on the same page. Families select among the school's billing options directly through the school's enrollment/payment process.

Before-and-After School Program (BASP) — sample full-year rates (2025–2026 shown as sample on the school page)

- Toddler & Children's House (sample full-year BASP): total sample amount USD 10,747 (composed of: 5 mornings USD 2,452; 4 afternoons until 5:30 PM USD 5,354; Thursdays until 5:30 PM USD 2,941).
- Elementary & Middle School (sample full-year BASP): total sample amount USD 9,149 (composed of: 5 mornings USD 1,235; 4 afternoons until 5:30 PM USD 5,015; Thursdays until 5:30 PM USD 2,899).

Application / enrollment fees

- No specific application fee amount or a published registration/enrollment deposit is listed on the school's public admissions and tuition pages. The admissions materials describe the application and interview process but do not publish a fixed application fee amount.

Billing schedule and payment terms

- The school publishes annual tuition amounts but does not list a single, publicly posted per-term billing schedule or a detailed payment-calendar on the tuition page. Payment-plan timing and installment mechanics are handled through the school's enrollment and billing process rather than as a fixed schedule on the public tuition page.

Boarding fees

- Lexington Montessori School is an independent day school serving ages 21 months to 14 years; there is no boarding program and therefore no boarding fees.

Other costs and fees (materials, trips, uniforms, etc.)

- Tuition is described as inclusive: no additional fees are billed for any school-hour activities, materials, and required trips during school hours. BASP (before/after care) is an extra cost as noted above. No separate uniform fee is published on the public admissions or tuition pages.

Refunds and withdrawal / refund information

- A specific, publicly posted refund or tuition-withdrawal policy (for partial refunds, last-day charges, or prorations) was not published on the school's public admissions or tuition pages. Details on refunds or withdrawal terms are handled in the school's enrollment/financial materials.

Fee payment options (credit card, bank transfer, electronic payment, etc.)

- Accepted payment methods (for example: credit card, ACH/bank transfer, check, or specific tuition-management vendor) are not listed on the publicly available admissions or tuition pages. Payment-method details are provided through the school's enrollment and billing system.

Financial aid process (need-based aid)

- Need-based financial aid is available; families apply through the school's financial-aid process using Clarity with an application deadline given (Clarity application by January 31, 2026 for the 2026–2027 cycle). Financial-aid notification is made with the admission decision.

Notes on currency and effective year

- The tuition figures above are published for the 2026–2027 school year (tuition information updated February 2026).

Summary of items not published on the public admissions/tuition pages

- No fixed application or registration fee amount is published.
- No explicit per-term fee table or fixed per-term billing amounts are published (annual rates are provided).
- No detailed public billing calendar or full payment-term schedule is published on the tuition page.
- No publicly posted payment-method list (credit card, bank transfer, etc.) or vendor name for tuition management is shown on the public pages.
- No publicly posted refund/withdrawal terms are shown on the public tuition or admissions pages.

If a record for any of these items is required for your database entry, those specific items are handled in the school's enrollment and financial documents rather than on the broadly published tuition page. The figures and BASP sample rates above are the published program tuition and sample BASP amounts for the academic years referenced.
Academics

Lexington Montessori School teaches Montessori Curriculum for students aged 2 to 14.

Curriculum
The school teaches Montessori pedagogy for children ages 21 months to 14 years. Students learn through self-discovery in Montessori classrooms guided by certified Montessori educators. In the curriculum, children explore Practical Life, Sensorial, Math, Language and Cultural Studies, with LMS's anti-bias education, art, farming, library, music, physical education and Spanish programs. The campus hosts METTC, a Montessori Elementary Teacher Training Collaborative, for eight weeks each summer, and Horizons@LMS as a Horizons National affiliate. The community emphasizes learning outdoors and Diversity, Equity, Inclusion and Belonging, while maintaining small class sizes with a 6:1 student-teacher ratio.

Student Teacher Ratio
6:1 student-teacher ratio
Wellbeing

Social and Emotional Learning (SEL)
LMS provides a nurturing environment in which strong social-emotional skills seamlessly develop in tandem with academics.

English as an Additional Language (EAL)
Spanish is taught in the Primary program; all Primary students have Spanish with a dedicated Spanish teacher.

Mental Wellbeing
LMS emphasizes social-emotional development as part of its Montessori education, supporting students' mental wellbeing.

Safeguarding
The school aims to create an environment where every individual is honored and protected.
Parent Experience

History
The school is an independent day school serving children ages 21 months to 14 years. Since 1963, LMS has offered an authentic Montessori experience.

Community
The LMS community emphasizes Montessori pedagogy, outdoor learning, and work in Diversity, Equity, Inclusion, Social Justice and Belonging. The school maintains small class sizes with a 6:1 student/teacher ratio and hosts Horizons@LMS as the first and one of the only Montessori Horizons National affiliates in the country. The community participates in service and activism, including Cradles to Crayons drives, and learning outdoors on an expansive natural campus with woods, streams and wetlands. Middle school students travel internationally. Parents engage through room parents, classroom volunteers, and board sub-committees to support school life.

Parent Teacher Association (PTA)
The school has a parent involvement structure that includes Room Parents, Classroom Volunteers, a DEI Parent Book Club, and Board sub-committees. Room Parents serve as a link for parents to the school, help create a welcoming and inclusive classroom, and facilitate volunteer opportunities. Classroom Volunteers lead baking projects, share cultural celebrations, chaperone field trips, and help with events such as Back to School Night Potluck, Mystery History Celebration, and Harvest Fest Reception. Board Sub-Committees involve parents and alums in governance and fundraising, including the Executive Committee, Governance Committee, Finance Committee, Fundraising, and Diversity, Equity, Inclusion.
Facilities

Facilities Overview
The LMS campus covers 23 acres in total, including 19 acres purchased in 2018 that comprise woods, streams, wetlands and an athletic field. Outdoor classrooms and play spaces are used across the curriculum. An A-Frame meeting space sits on the 19 acres for group lessons. The campus features a greenhouse with a 26‑foot growing dome unveiled in 2015, plus a Farming program, a Food Forest and maple sap taps. Outdoor education field studies are offered through trips to Nature's Classroom for Lower Elementary, the Hulbert Center in Fairlee, VT for Upper Elementary, and Kroka Expeditions in Marlow, NH for Middle School.

Sports Facilities
Upper Elementary and Middle School students may join LMS sports teams. LMS participates in the Montessori Athletic Conference (BIG MAC). Middle School athletics use off‑campus facilities for 2.5 hours weekly, including Swimming at Waltham YMCA, Rock Climbing at Central Rock Gym, Rowing at Community Rowing, Fencing at Boston Fencing Club, Archery at Archery USA, Tennis at Waltham Athletic Club, Golf at Stone Meadow Golf, and Fitness/Strength Training at Athletic Evolution.

Academic Facilities
The school has Montessori-certified teachers who meet students where they are and support their discoveries while following Maria Montessori and embracing technology and progression. Academic Support is provided by experienced adults on campus. The average class ratio is 6:1. METTC, the Montessori Elementary Teacher Training Collaborative, operates on campus for eight weeks each summer.

Extra Curricular Facilities
Before and After School Program (BASP) provides care before and after school and enrichment activities, including a Siblings program. Summer at LMS includes METTC teacher training and Horizons @ LMS, which offers a Montessori work cycle, pool time at Waltham YMCA three times weekly, and enrichment classes in art, farming, music and physical education. Primary students also have weekly Spanish and Music as part of core curriculum, with additional Art and PE offerings.
Extra-Curricular Activities

Academic & Intellectual
Montessori-certified teachers meet students where they are and support their discoveries, following Maria Montessori's teachings while embracing technology and progression. Students develop creative thinking, solution seeking, ethical decision-making, communication, collaboration, and innovation. Montessori at LMS is based on beliefs that children are naturally eager to learn, deserve respect, and require nurturance of physical, social, emotional and cognitive development, uninterrupted work time, freedom within an ordered environment, and peer learning.

Arts & Creative
Art, farming, library, music, physical education, and Spanish programs are part of the LMS curriculum.

Cultural & Language
Language and Cultural Studies are part of the curriculum, and a Spanish language program is offered.

Social & Hobbies
Affinity groups are offered.

Community & Service
The anti-bias curriculum is taught to all students, faculty, and parents. Kindergarten through eighth grade participate in Cradles to Crayons drives and service-learning projects, and the Farming program provides practical life skills and global citizenship. Earth Day, Hunger Banquet, the LMS Peace Assembly and Montessori Model United Nations engage students in environmental stewardship, ethics and civic awareness.

Leadership & Professional
Affinity Groups are offered; Montessori Model United Nations provides leadership and global affairs experience for Middle School; collaboration and peer leadership are fostered through teamwork and coaching within diverse classrooms.

Lifestyle & Wellbeing
The LMS campus spans 23 acres in total, including 19 acres of woods, streams and wetlands with outdoor classrooms and expansive natural spaces. The A-Frame serves as a meeting space for group lessons. The Farming program engages students in farm activities, supported by a greenhouse and maple-tapping activities. Outdoor education field studies for Lower Elementary through Middle School include trips to Nature's Classroom, the Hulbert Center, and Kroka Expeditions.
Languages

Language Provision
Languages spoken by families include Arabic, Armenian, Cantonese, Dutch, English, Farsi/Persian, French, Gujarati, Hindi, Italian, Korean, Mandarin, Portuguese, Russian, Spanish, Telugu, and Turkish.
Reputation

Awards
null

Accreditations
AISNE, AMS, NAIS, MSMR
Admissions

Admissions
The 2026-2027 Admission Cycle began in October 2025. Contact LMS for information at 781-862-8571 or inquire online. Campus tours are hosted every fall for prospective parents, and campus tours can be scheduled after submitting an inquiry. After touring, complete an admission application; other forms may be required depending on the age of the applicant, including student evaluation forms from the current teacher, report cards, and, for middle school applicants, an essay. Downloadable forms include AISNE Release Form, AISNE Form for Pre-K–1st Grade, AISNE Form for Grades 2–5, AISNE English Form for Grades 6–12, AISNE Math Form for Grades 6–12, Toddler Program Applicants' Teacher Evaluation, and Essay Question for Middle School Applicants. Meet with the Director of Enrollment after your completed application; the interview usually lasts about an hour and attended by parents. Schedule a visit and assessment for your child: toddlers participate in a visit; Children's House applicants may have admission videos; Kindergarten through Upper Elementary visit in person for their assessment; third through sixth grade applicants experience the rhythm of the school day, and middle school applicants typically visit for a full day with an academic assessment.

Scholarships
Financial aid at LMS provides need-based aid to families who might not otherwise be able to attend LMS. To apply for financial aid, fill out the Clarity application by January 31, 2026 (this does not replace the admission application, but is an additional step). You will be notified of your qualification with your admission decision. For more information, consult our Financial Aid Guidelines and Policies or contact Aimee Randall, Director of Enrollment.
School Events
The school has not added events
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