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Have You Got It?

Can you explain the strategy for winning this game with any target?

Counting Factors

Is there an efficient way to work out how many factors a large number has?

Is There a Theorem?

Draw a square. A second square of the same size slides around the first always maintaining contact and keeping the same orientation. How far does the dot travel?

Shear Magic

Age 11 to 14
Challenge Level

How does the area of the triangle compare to the area of the parallelogram? How do you know? How can you use this to create a formula for the area of a triangle in terms of the area of a parallelogram?