J. Addison School

Secondary School

February 2026
First Day of School Secondary Program
February 2

J. Addison School 2 Valleywood Drive, Markham, Ontario, Canada
First Day of Academic School Semester II
Move out Dormitory Residents Graduates Secondary Program
February 2 @ 8:00 am - 11:00 am

J. Addison School 2 Valleywood Drive, Markham, Ontario, Canada
Move out for dormitory residents Winter Graduates before 11:00am
Family Day
February 16

J. Addison School 2 Valleywood Drive, Markham, Ontario, Canada
Statutory Holiday. No class
PA Day
February 27

J. Addison School 2 Valleywood Drive, Markham, Ontario, Canada
Professional Activity Day. No class
March 2026
March Break
March 16 - March 17

J. Addison School 2 Valleywood Drive, Markham, Ontario, Canada
Holiday. No class
Ontario Secondary School Literacy Test
March 25

J. Addison School 2 Valleywood Drive, Markham, Ontario, Canada
OSSLT for Secondary School
April 2026
Easter Holidays
April 3 - April 6

J. Addison School 2 Valleywood Drive, Markham, Ontario, Canada
Holiday. No class
PA Day
April 24

J. Addison School 2 Valleywood Drive, Markham, Ontario, Canada
Professional Activity Day. No class
May 2026
Victoria Day
May 18

J. Addison School 2 Valleywood Drive, Markham, Ontario, Canada
Statutory Holiday. No class
Graduation Ceremony Class of 2026
May 29

J. Addison School 2 Valleywood Drive, Markham, Ontario, Canada
Congrats Class of 2026!
June 2026
High School Examinations
June 11 - June 16

J. Addison School 2 Valleywood Drive, Markham, Ontario, Canada
High school examinations for Spring Semester 2026 are scheduled from Thursday, June 11th, 2026 - Tuesday, June 16th, 2026
Exam Review Day Secondary School
June 17

J. Addison School 2 Valleywood Drive, Markham, Ontario, Canada
All students must attend