Upcoming Diploma Course Calendar
12-18 Diploma Course
2025-2026 Schedule
Application Deadline:
January 15, 2025
Admissions happen on a rolling basis. Spaces are limited and will be filled as applications arrive.
2025-26 course dates:
Online Lectures and Seminars:
February 8, 2025 - June 24, 2025
Twice-a-month, 2-hour synchronous lectures and seminar discussions (February, March, April, May, June)
2-3 lectures per month
Readings associated with lecture topics
Follow-up work: lecture notes; reflections (journals); observation exercises, lexicon terms; theory write-ups
Summer 2025:
(4.5 weeks on-site)
June 25, 2025 - July 25, 2025
To be held in person at Hershey Montessori School’s Huntsburg, Ohio campus.
Required three-week on-site residential experience; additional 1.5 weeks non-residential on-site lectures and activities.
Interim Academic Year:
August 2025 to Summer 2026Observation, teaching practice, independent work, and literature review.
Summer 2026:
(5.5 weeks on-site)
June 24, 2026 - August 1, 2026
To be held in person at Hershey Montessori School’s Huntsburg, Ohio campus
Includes written and oral exams
The IMTI diploma course for AMI 12-18 training was a transformative experience that grounded me in adolescent needs and characteristics, reinforced Montessori theory and best practice, and connected me to an amazing cohort of adolescent practitioners. I left the program thoroughly prepared to set a five-year plan for our adolescent program in motion and continue to benefit from the depth and richness of resources and experience provided.
Meagan Ledendecker
Diploma Course 2022, Massachusetts
The AMI 12-18 Diploma Course has been the most inspirational and transformative experience of my adult life. The summer residential experience was beautiful, empowering, and grounding in so many amazing ways. The advisors and staff are so kind and knowledgeable, and the connections built with other trainees will last a lifetime. I cannot recommend this course highly enough!
Michael Harr
Diploma Course 2023, Kentucky
