PUZZLES

Free, fun, and meaningful math for all

Every JRMF puzzle is hands-on, play-based, and standards-aligned.

We design our activities to have a low floor so that anyone can find a way to engage and a high ceiling so that everyone can find a meaningful challenge.

All of our puzzles come with free festival guides that help you use our activities at home, in the classroom, or during math festivals.

 

3rd - 12th Grade Shape
Billiards Geometry
Billiards Geometry
Embrace your inner pool shark and try to make every shot.
3rd - 12th Grade Number
Chameleon Island
Chameleon Island
Help all the chameleons on the island change into the same color.
3rd - 12th Grade Logic
Chomp
Chomp
Can you avoid taking the yucky chocolate piece?
3rd - 12th Grade Logic
Colored Loops
Colored Loops
Create colorful loops so that you can always find your way back to the beginning of the path.
3rd - 12th Grade Number
Countdown
Countdown
Be the player to take the last token!
3rd - 12th Grade Logic
Cup Stacking
Cup Stacking
Can you find a way to stack every cup?
3rd - 12th Grade Logic
Four Corners
Four Corners
Can you be the first player to make a square?
3rd - 12th Grade Shape
Gerrymandering
Gerrymandering
Can you split up each puzzle so that more than half of the groups are purple groups?
3rd - 12th Grade Number
Graceful Gourds
Graceful Gourds
Can you gracefully label these pumpkin patches?
3rd - 12th Grade Number
Ladybugs
Ladybugs
Help as many ladybugs as possible land on the leaves.
3rd - 12th Grade Shape
Lots o’ Plots
Lots o’ Plots
Fill your entire garden with plots of carrots.
3rd - 12th Grade Number
Magic Flowers
Magic Flowers
Can you arrange 5 numbers into a Magic Flower in which every group of three numbers in a line adds up to the same magic number?
3rd - 12th Grade Logic
Palindrome Swap
Palindrome Swap
Can you make palindromes in the fewest number of swaps?
3rd - 12th Grade Logic
Penguin Island
Penguin Island
Build a community on Penguin Island with more penguins than humans.
3rd - 12th Grade Shape
Poly Puzzles
Poly Puzzles
Can you build a polyhedron using the shapes in each puzzle?
3rd - 12th Grade Number
Prime Cubes
Prime Cubes
Armed with only your understanding of prime numbers, play against your friends to find the best way to fill in our colorful cube.
3rd - 12th Grade Logic
Rook’s Move
Rook’s Move
Race your friends to get the rook to the end of the chessboard. Can you find a way to win every time?
3rd - 12th Grade Logic
Rubik’s Riddles
Rubik’s Riddles
Can you make the pattern in the puzzle by rotating the cube?
3rd - 12th Grade Logic
Skyscrapers
Skyscrapers
Help the city planner build up the city with new skyscrapers.
3rd - 12th Grade Shape
Smileys
Smileys
Smiling is contagious! Can you turn every frown upside down?
3rd - 12th Grade Logic
Sprigs
Sprigs
Take turns drawing curves to connect dots. Can you be the one to draw the last curve?
3rd - 12th Grade Logic
Star Battle
Star Battle
Can you place the stars on the grid?
3rd - 12th Grade Number
Stepping Stones
Stepping Stones
Can you find a way to place the next stepping stone?
3rd - 12th Grade Logic
Toothpick Squares
Toothpick Squares
Can you make the right number of squares out of toothpicks?
3rd - 12th Grade Logic
Toothpick Triangles
Toothpick Triangles
Can you make the right number of triangles out of toothpicks?