2020-2021 Contest Schedule:
Pascal/Cayley/Fermat (multiple choice): Feb. 23, 2021
Fryer/Galois/Hypatia (long answer): April 14, 2021
Euclid (long answer, important for prospective Waterloo students): April 07, 2021
CSMC and CIMC: November 18, 2020
COMC: October 29, 2020
AMC 10/12 A: February 04, 2021 (not offered at Mackenzie)
AMC 10/12 B: February 10, 2021
Resources:
Past Waterloo contests (with answers): https://cemc.uwaterloo.ca/contests/past_contests.html
Past COMC contests (with answers, but older ones have typos): https://cms.math.ca/Competitions/COMC/2019/
Random problem set generator: https://cemc2.math.uwaterloo.ca/contest/PSG/school/index.php
Khan Academy (online courses about all subjects): https://www.khanacademy.org/
AP Calculus on Collegeboard: https://apcentral.collegeboard.org/courses/ap-calculus-ab/course
Math club’s lessons: https://mackenziemathclub.github.io/lessons/
Math club’s former lessons: https://mackenziemathclub.github.io/archive/