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.
If you’re interested in helping us design new activities, join our blog where we post about a new activity idea each week.
3rd - 12th grade
Number
Chameleon Island
Help all the chameleons on the island change into the same color.
3rd - 12th grade
Logic
Colored Loops
Create colorful loops so that you can always find your way back to the beginning of the path.
3rd - 12th grade
Shape
Gerrymandering
Can you split up each puzzle so that more than half of the groups are purple groups?
3rd - 12th grade
Number
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
Number
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
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
Skyscrapers
Help the city planner build up the city with new skyscrapers.
3rd - 12th grade
Shape
Smileys
Smiling is contagious! Can you turn every frown upside down?
3rd - 12th grade
Logic
Sprigs
Take turns drawing curves to connect dots. Can you be the one to draw the last curve?
