Hexdominoes Gamepuzzles
“We knew Hexdominoes would be a winner, with hundreds of patterns, color themes, easy and difficult challenges. And now we keep discovering more and more beautiful designs of symmetry, color …
Ask a Different Question: M-pires, Tetrads, and Off-road Math
By asking questions and exploring the world through an open path to discovery, take a journey through the garden of math with its many paths to explore. The exercise encourages …
Martin Games
Martin Games consists of two games each with 9 nodes. The first game features the nine different letters within MARTIN GARDNER and the second features the 6 different letters within …
Portrait Picross
Picross, also know as Nonograms or Griddlers, are logic puzzles that reveal a hidden picture. The cells in a grid must be colored corresponding the listed color or left blank …
The Game of Amazons
An Amazon queen is an immortal chess queen. Like a chess queen, she can move forward, backward, diagonally, or in a straight line. In this 2-player game, each player has …
Stacks Game
Be the first player to move all pieces across and off the board to win this 2-player strategy game. Decide between defensive and offensive strategy as you choose to move …
How to Fold a Trihexaflexagon
Use the included templates to create these folded paper polygons that appear to have two sides. Follow the step-by-step instructions to form the included patterns, or use the included templates …
Crocheting a Mobius Strip
Use a combination of chain stitches and double crochet stitches to crochet a Mobius Strip as large or small as you wish. Using a new material, such as yarn, to …
Map Colouring and the Four Colour Theorem
Can you colour this map using only four colors? The Four Colour Theorem says that no more than four colours can be used so that the regions that share a …
Drawing Pursuit Curves
When predators hunt their prey they move along pursuit curves which can turn into logarithmic spirals when the right factors align. Recreate this pursuit on paper to explore this concept, …
Rubik’s Magic
Own a Rubik’s Magic or found yourself curious about how they work? These videos reveal some of the near endless constructible configurations to be explored. Bonus! If you are the …
World’s Greatest Mathematical Card Trick
Invented by mathemagician Art Benjamin, shared by mathematician and prolific puzzle author Ian Stewart, and published by Author Garth Sundem, The World’s Greatest Mathematical Card Trick is a search to …
Letters Puzzle Game
First, complete the puzzle by using each of the letters from ‘Celebration of Mind’ three times to fill in this puzzle with 13 words. Then, play head-to-head to cover up …
Recreational Mathematics
Martin Gardner recounts 25 years of puzzles and discoveries in this Scientific American article. Many of his very own puzzles are featured and their mathematical solutions are described in depth …
Semi-Magic Squares
Semi-magic squares are thought of as matrices in this arithmetic exploration. Split up a a shuffled deck of cards to create a magic-square out of playing cards with additional challenges. …
Square Permutations
Do square permutations always exist? Work through solutions and scenarios through this exploration activity. Submitted by: James Tanton Time Required: 30 minutes You’ll Need: paper and pencil Download Activity
Dividing Squares into Triangles
Explore the complexities in dividing squares into triangles. How many different ways can you divide a square into triangles of equal area? Attempt to answer this question, and others, while …
Dots on a Circle
How many regions are created by connecting dots with line segments intersecting parts of a circle? Explore what happens when those dots are placed haphazardly versus symmetrically, as well as …
Playing with Evens and Odds
Explore the concept of handshakes through this twist on connect-the-dots. Draw lines, representing handshakes, between dots, representing people, so that the number of lines drawn matches the number next to …
Playing Pool
Explore angles as you theoretically shoot pool balls across grid paper in an attempt to land them in the pockets of the pool table. Where will the ball land if …