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.

For All Ages Logic

Apple Picking

After a long day of picking apples, can you eat the last, juiciest apple?

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For All Ages Logic

Bridges

Can you build a bridge that connects all of the islands?

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For All Ages Number

Catch Up

Can you make the longest line?

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For All Ages Shape

Changing Colors

Can you make two of each shape? But they can't share the same colors!

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For All Ages Logic

Chocolate Fix

Can you make the perfect chocolate box for your customers?

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For All Ages Shape

Color Triangles

Create beautiful, colorful triangular patterns.

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For All Ages Logic

Crack the Code

Crack the secret code in as few guesses as you can!

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For All Ages Number

Dice Bingo

Can you make a winning bingo card?

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For All Ages Logic

Domino Dissection

Can you tile the board using each domino exactly once?

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For All Ages Logic

Dot Parties

Can you make parties of connected squares and dots?

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For All Ages Shape

Hexaflexagons

Learn the mysteries of the simple yet surprising hexaflexagon, and take one home to show your friends!

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For All Ages Logic

Juice Jumble

Order these jumbled juices to make a beautiful rainbow.

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For All Ages Logic

Jumping Julia

Can you jump your way from start to finish?

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For All Ages Shape

Königsberg

Everything is made up of one, continuous line. Can you figure out what belongs in town?

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For All Ages Logic

Monster Town

Race your friends to find the patterns in these Halloween-themed SET cards!

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For All Ages Logic

Mosaics

Can you make each mosaic?

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For All Ages Logic

Panning for Gold

Among all the counterfeits there is only one true gold bar. Can you find it?

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For All Ages Shape

Pentominoes

Can you find a way to cover the shapes with pentominoes?

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For All Ages Logic

Pool Testing

Learn how doctors help patients using pool testing through this engaging game.

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For All Ages Logic

River Crossings

Help your wolf, goat, and cabbage cross the river.

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For All Ages Logic

Star Battle

Can you place the stars on the grid?

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For All Ages Shape

Tippy Toads

How many toads can you help sunbathe by balancing them on a lilypad?

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For All Ages Logic

Tower of Hanoi

Can you solve these puzzles based on an ancient legend, golden disks, and the end of the world?

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