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Lower Elementary Montessori Co-Teacher​/Montessori-Trained Assistant Teacher; Ages 6

Job in Chelmsford, Middlesex County, Massachusetts, 01824, USA
Listing for: American Montessori Society Inc
Full Time position
Listed on 2026-06-04
Job specializations:
  • Education / Teaching
    Elementary School, Early Childhood Education
  • Child Care/Nanny
Job Description & How to Apply Below
Position: Lower Elementary Montessori Co-Teacher / Montessori-Trained Assistant Teacher (Ages 6–9)

We are seeking a certified Lower Elementary Montessori Guide or a Montessori-trained Assistant Teacher to join our team as a Co-Lead Teacher, or a Montessori-trained Assistant Teacher in our program serving 1st–3rd year students (ages 6–9), in response to the continued growth in our Elementary Program. This role is part of a collaborative co‑teaching model
, working closely with a partner Lower Elementary guide.

The ideal candidate enjoys working with students to foster independence, intellectual curiosity, and social‑emotional growth
, and collaborates effectively with a co‑teacher to support the needs of the whole child. Co‑teaching offers the opportunity to share ideas and responsibilities while providing increased social‑emotional support and more individualized and small‑group lessons, creating a rich and responsive academic environment.

This is a wonderful opportunity for a passionate, creative educator who can plan thoughtfully, problem‑solve collaboratively, and thrive in a team‑oriented setting.

Key Responsibilities
  • Collaborate with a co‑teacher to design, prepare, and maintain an orderly, beautiful Montessori environment that meets the developmental needs of children ages 6–9
  • Plan and implement individual and small‑group lessons that integrate academics with Practical Life, Grace and Courtesy, and Cosmic Education
  • Work collaboratively with the co‑teacher to set goals, support student growth, and guide the work of individuals and groups
  • Present lessons in accordance with Montessori curriculum, pedagogy, and principles
  • Educate the whole child by applying Montessori philosophy in a joyful, inclusive, and respectful learning environment
  • Actively observe students to identify interests and developmental readiness, guiding them toward appropriate materials that foster mastery and independence
  • Maintain accurate and up‑date records of student work, progress, and behavioral observations using school‑designated software platforms
  • Participate in chaperoning off‑site field trips, physical education programs, and Outdoor Classroom experiences during the Spring semester
  • Represent the school’s mission and values within the school community and to prospective families
Position Details

This is a school‑year position 8/31/26 through 6/11/27 (Approximately 180 work days). Benefits include paid sick and personal time. Additional days off include 2 weeks during December break, February & April vacation weeks, and major holidays. Pay will commensurate with experience & certification.

Please email resume, cover letter, and 3 references to li, e, and car

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