J. Addison School is marking a milestone anniversary this year, with a plan for growth that includes new partnerships, an expanded athletics program, and a larger campus. This November the private boarding and day school in Markham will hold celebrations for its 15th anniversary.
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Montessori Casa Ages 3 to 6
Elementary School Grades 1 to 8
Secondary School Grades 9 to 12
Boarding Program Grades 9 to 12