Games Kit
A collection of 12 classic games that were part of the Portuguese Championship of Mathematical games (2004-2013). Each of the selected games strengthens focus, visualization, forward thinking, and problem solving …
Wordless Geometry
Can you figure out what fraction of each shape is shaded? It seems tricky but you don’t even need a paper or pencil to solve these simple puzzles—just look carefully …
Latin Erdős
A Sudoku-like strategy game in which players take turns placing numbered tokens on a grid. Tokens must be placed so that no single number appears twice in a row or …
Card Deck of Games
Rules to 26 simple pencil and paper games including classics such as Nim, Dots and Boxes, Sudoku, Hex and others you’ve likely never heard of before! Submitted by: Jorge Nuno …
2016 Theme for CoM: ’16 Square
What’s the 2016 Theme? The theme for this year’s Celebration of Mind is ’16 Square. Have any great ideas for puzzles, games or magic tricks that feature squares? Send them to …
The Global Math Project Videos
These videos aren’t quite activities in themselves, but they were too great not to share with our Celebration of Mind event hosts. Have fun turning these concepts into math problems …
Mathemagician Crossword
Calling all mathemagicians! Solve all 127 magical clues to complete this New York Times Thursday crossword puzzle. Submitted by: Dana Richards Time Required: 30 minutes + You’ll Need: pen or …
74G4G7
In this edge-matching puzzle you’ll have to figure out how to arrange seven double-sided hexagons in a hexagonal pattern so that all of the meeting corners on both sides match …
Patterns II
A clever logic game in which one player designs a secret master pattern and the other players work to uncover it with as few clues as possible. This one is …
Mathematically Correct Breakfast
Turn an ordinary breakfast into magic by following these simple instructions on how to slice a bagel into two linked halves. Not only is it more fun to eat a …
Martin Gardner Puzzles
Here you will find dozens of Martin Gardner related puzzles and solutions. Play online or download and print. Submitted by: ThinkFun and Puzzles.com Time Required: up to you! Go to …
Rhombic Triacontahedron with Lizard Tessellation
This hands–on activity is wonderful fun and learning for kids–you’ll combine art and mathematics as you make a polyhedron decorated with a cool lizard tessellation. Submitted by: Robert Fathauer Time …
MARTIN 6×6 Challenge
A Sudoku sliding puzzle using the letters in Martin’s name. Complete the puzzle so that the 6 horizontal and vertical rows contain all six colors and the six letters of …
Pack of Little Fibs Trick
A quick card trick requiring only 6 cards and some very simple math. Learn it in minutes and impress for years! Submitted by: Colm Mulcahy Time Required: 10 minutes You’ll …
A Better Mousetrap
A Better Mousetrap is three-part topological effect from Magician Michael Weber, in which part of a 5×7 index card seems to magically pass from one side of a spectator’s hand …
Nobbly Wobbly Workshop
Host your own Nobbly Wobbly Workshop! Materials and resources will leave your group considering the aesthetics, psychology, and mathematics involved in quality puzzle making and solving. Submitted by: Dick Esterle …
Ice Cream Trick
Wow any audience with this no fail ice cream trick. Based on simple mathematical principals which you can learn about here, but appearing to be nothing more than magic! Submitted …
3D Dragon Illusion
Print, Cut, Fold and assemble your very own Thinky the dragon. Close one eye and slowly move around the room. Isn’t it amazing how Thinky follows you wherever you go? …
Möbius Strip Surprise
This simple mathematical wonder seems like magic every time! You’ll only need scissors, tape and your printed PDF to create Martin Gardner’s Möbius Surprise. Before you cut, challenge your friends …
Flexagon Party
There is no better way to celebrate Martin Gardner than to throw a Flexagon party! Here you will learn how to make basic and advanced hexaflexagons and trihexaflexagons. Find books, …