We are a K-12 private day and boarding school located in Markham, Ontario, Canada. With our unwavering dedication, care and support, we nurture our tomorrow’s thinkers to becoming responsible and compassionate global citizens.
J. Addison would like to welcome all new students that will be joining us this semester! We hope you have familiarized yourself with the school and enjoyed your first day 🙂 The J. Addison community is filled of opportunities and… more
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Montessori Programs Ages 3 to Grade 2 
Elementary School Grades 3 to 8 
Secondary School Grades 9 to 12 
Boarding Program Grades 7 to 12 
Summer Programs K to Gr. 12