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.
For All Ages
Logic
Apple Picking
After a long day of picking apples, can you eat the last, juiciest apple?
For All Ages
Logic
Domino Dissection
Can you tile the board using each domino exactly once?
For All Ages
Logic
Frogs and Toads
Can you help the frogs and toads get to the other side of the pond?
For All Ages
Shape
Königsberg
Everything is made up of one, continuous line. Can you figure out what belongs in town?
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?
For All Ages
Shape
Map Coloring
Can you color each map so that no two neighboring states are colored the same color?
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.
