So much of what we do at Barrie begins with our Montessori program. Serving students from age 18 months through grade 5, Barrie Montessori engages children in thoughtful pursuits and develops skills at each student's developmental level. We challenge students by establishing high standards for thoughtful work.

Barrie Montessori is also home to the Institute for Advanced Montessori Studies, a training and certification center for aspiring educators.

Together, these programs make Barrie a leader in Montessori education


Whether you've been a Barrie student since early childhood or are joining us from another school, you'll soon realize that Barrie Prep's programs are focused on you as an individual, a thinker, a learner, a leader, and an integral member of our community.

You'll find that we expect a lot of you -- and we believe you'll take great pride in discovering how much you can expect of yourself. Our rigorous academic program provides endless opportunities that challenge your skills, engage your intellect, and inspire your creativity.


Barrie Camp, a Washington, D.C. area institution since the 1950s, serves campers from ages 4 to 14. Our 45 acre campus offers a safe, self-contained environment perfect for campers to freely explore and enjoy their favorite activites with friends, new and old. Barrie Camp provides a range of traditional activities (both indoor and out), as well as new programs added to make each summer unique

What's Happening at Barrie



This Week in Athletics

This Week In Mustang Athletics

Richard Chin


Practices for varsity athletics (track & field, soccer, tennis) will begin on Monday April 4, 2016 at 4:00 pm. Practices will run every Monday through Thursday from 4:00 pm to 5:30 pm.

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Coming Up On Campus

2016-2017 Health Forms Now Available

Health forms for the 2016-2017 school year can now be downloaded from the Current Parents section of

Family Satisfaction Survey Open for Responses

We're always seeking input from Barrie families, but this is your chance to offer your feedback formally. The annual Satisfaction Survey is available now (and will be open through the end of April.

New Panel

Barrie News

Barrie welcomes new faculty members in both the Montessori and Prep divisions this fall, and announces some new additions to the leadership team as well.

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Started in 2009, Bigs and Littles keeps our Prep and Montessori students connected and strengthens our overall sense of community spirit. At the beginning of the school year, each of the Toddler, Primary, and Elementary classrooms (the "Littles") at Barrie are matched up with a group of "Bigs" from Prep, usually based on advisory.

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Congratulations to Aaron Haynie and David Martinez of the Class of 2016, on being named Posse Scholars at the University of Rochester and Bucknell University, respectively. Awarded annually by the Posse Foundation, Posse Scholars receive full, four-year scholarships.

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The Lower Elementary Teachers and Director of Technology and Innovation have partnered to introduce a new technology device that will support Montessori curriculum. It's called a ProScope, a digital microscope that connects to students' iPads.

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After Barrie: Alumni Stories

Theo's journey at Barrie began where many others started — middle school. After attending international school for his elementary education, he entered public school, where his social and intellectual maturity stagnated. In the fall of 2005, Theo enrolled in the Barrie School, where he spent treasured years of his life.

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"Barrie is a special place. You really do not understand the value until you're out." Amanda Archer spent more than 14 years at Barrie, from pre-k through graduation. She is considered a "lifer" and recalls a number of positive experiences during her tenure as a student.

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Back in the early 1990s, it was not unusual to encounter someone walking around with long hair on the top of his head, with the back and sides shaved. At Barrie, that someone was Aryaman (Ary) Shalizi (Class of 1993). While his hairstyle is long gone, Ary's Barrie education continues to pay dividends, both personally and professionally.

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Student Work: Answering Essential Questions

What's the Best Way for a Solar Car to Catch a Few Rays?

Say you're out for a spin in your solar car, but you're driving east and the sun's heading west. Do you have to wait until sunrise to hit the road again? Barrie Prep junior James tackled this real-world question in his Engineering for Renewable Energy Technologies elective, building a functional model of a solar-powered car. He worked through three prototypes until he had a model that satisfied his curiosity. His process examined rolling resistance, gear ratios, and the optimal angles for the solar panels, with the last variable being critical. Determining that the angles varied with time of day and position of the car, he designed a pivot that would allow the solar panels to swivel such that they always faced the sun. Barrie Prep students and teachers explore real-world questions in hands-on ways.

What Is Montessori Math?

That's the algebraic expression of the trinomial cube, a foundational Montessori material. Guided by their teachers, Barrie Montessori students receive their first hands-on experience with the trinomial cube in the Primary division, when they're between 3 and 6 years old. As a sensorial exercise, they take the cube apart, handle the different-sized pieces, arrange them in the proper order, and reconstruct the cube. This seemingly simple exercise builds an intuitive understanding of advanced mathematical concepts and lays the foundation for more involved exploration and complex thinking as students advance.

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