Current Problems of the Week

Primary

A Walk to the Park - October 20

boy walking Find the total number of blocks Tom walked.

Algebra

What's the Difference? - October 13

kids studying

Gaby and Dimitri explore the difference in a difference. See what you find!

Latest Solution: Baffling Brother
Preview: Splash!

Math Fundamentals

So Many Salmon - October 13

salmon

Do Armida's co-workers work faster or slower than she does?

Mentor Group at Work

Latest Solution: Campfire Camaraderie
Preview: Subway Subtotals

Geometry

Tied in Knots - October 20

rope forming a triangle

How many triangles can be made from the knotted rope?

Latest Solution: Eminen

Pre-Algebra

3-D Vision - October 20

net

What shape is formed by the segments on the faces of the cube?

Mentor Group at Work

Latest Solution: Integer Images

Trig & Calculus

Up, Up, and Away (Part II) - October 13

desertCan you figure out the compass heading to fly the shortest path between two far-away points?

Latest Solution: Up, Up, and Away (Part I)
Preview: Can You Prove It?


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