 CEMC Home
 About Us
 Contests
 Courseware
 CEMC Digital
 CEMC in Person
 Books
 Master of Mathematics
for Teachers  Educator Development
 Make a Difference
Math Circles lessons from prior years have been organized by themes. A lesson may have more than one theme. These resources are provided for both students and teachers. Please use them!
Information about the audience, dates and location.
20222023 Materials  Number Sense  Geometry & Measurement  Algebra  Data Management  Computational Thinking 
Within each theme, lessons have been further organized by grade level: Grade 6, Grade 7/8, Grade 9/10, and Grade 11/12.
Grade 6  
Computer Science 


Cryptography 


Logic Puzzles 


Graph Theory 

Grade 7/8  
Game Theory 


Boolean Algebra 


Graph Theory and Search Algorithms 


BCC Prep 


Graph Theory Proofs 


Propositions & Control Flow 


Algorithms 


Turing Machines 

Grade 9/10  
Knot Theory 


Sheldon's Shells 


Counting 


Addition Magician 


State Machines 


Colouring Graphs 


Surprise Party 


More Counting 


Computer Programs 

Grade 11/12  
Game Theory 


Cryptography 


Mathematical Games 


Partitioning Puzzles 


Dwellings with Many Doors 


Proof by Contradiction 


Trugs and Falths 


Greedy Algorithms 


Comparison Machine 


Silly Square Roots 
