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
Shape
Gerrymandering
Can you split up each puzzle so that more than half of the groups are purple groups?
For All Ages
Shape
Hexaflexagons
Learn the mysteries of the simple yet surprising hexaflexagon, and take one home to show your friends!
For All Ages
Shape
Königsberg
Everything is made up of one, continuous line. Can you figure out what belongs in town?
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
Shape
Smileys
Smiling is contagious! Can you turn every frown upside down?
For All Ages
Shape
Tippy Toads
How many toads can you help sunbathe by balancing them on a lilypad?
