Note: All events below are tentative and many events have not yet been scheduled.
*Please listen to the morning announcements and check the school website (Google Calendar) and MAC Lyons Den website (https://maclyonsden.com) for other amazing events and updates that are happening during the school year!
| september 1 | grade 9 timetable distribution and orientation |
| september 8 | first day of school – welcome back macs students! |
| september 18 | grade 9 team building orientation day |
| september 9 | grade 9 macs parent trip information meeting (7 p.m.) |
| september 22 | post-secondary workshops grade 12 |
| september 23-25 | muskoka woods macs trip (gr. 9) |
| october 1 | club crawl |
| september 28 - october 2 | grade 9 visits to student services |
| november 12 | macs information night (booth displays 6:30 p.m. and presentation 7 p.m.) |
| november 20 | pa day |
| december 21 – january 1 | winter break |
| january 14-16 | eqao math (grade 9) |
| february 15 | family day |
| march 9 | mseo |
| march 15-19 | march break |
| march 30 - april 8 | osslt grade 10 literacy test (eqao) |
| april 26-29 | student council spirit week |
| april 30 | good friday |
| may 3-14 | ap exams |
| june tbd | macs grade 12 graduation |
| june tbd | commencement |
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