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Gertrude must visit all the stones in her pond — but not just any way. Certain constraints will force students to use logic to solve the challenge.

The principal of your school is having a stained glass window made. Can you figure out the area of the blue region in the stained glass to help her? It’s your turn!

Justin’s brother mixed up the pieces from two puzzles. As a result, Justin ends up with one extra piece. Can you help him find the odd one out?

A tempting slicing challenge, to be done alone or in a group. Good luck!

Ludo is playing with a rope he found in the park and is asking some rather unusual questions. It’s up to you to answer them.

Thieves have broken into the museum! They’re after the ancient map — but they leave with only a piece of it.

Each student stands in a region and gives a clue about it — except for Pascal, who is sulking. The goal is simple: figure out where each student is located. However, solving the puzzle won’t be without its challenges!

Mr. Blaise has set up a rotating sprinkler on his lawn to water it. However, some areas cannot be reached by the sprinkler. What portion of his lawn will remain dry?

Help the city planner design the new look of city hall. Nested circles, areas, radii — there’s plenty to think about!

Principle Estimate the amount of toilet paper needed to cover the classroom.

Ben is in charge of a ride at the amusement center where he works. When will he take his next break? That all depends on the merry-go-round !

Principle Reconstruct the secret solids by using their projections.