Dividing Pizza

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Compare slices of pizza from pizzas with different diameters.

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Summing Circles

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Finding the cumulative area of shrinking circles.

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Inscribed Circle

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Finding an estimation for the area of a circle.

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Target Areas

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Determine the area of a target formed by concentric circles.

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Dalmatian Day

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Cut various circles from paper measuring 9 inches by 12 inches. What’s the area of the circles and the percent of paper wasted after cutting out the circles?

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Too Many Dogs

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Determine how many dogs Elizabeth owns.

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Getting Free

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How should a prisoner arrange 200 balls so that the prisoner has the greatest possibility of going free?

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Matching Socks

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Determine the number of socks you should pull out in order to guarantee that you will have a pair.

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Mystery Envelopes

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Knowing what’s in one envelope, should you keep your envelope or switch and ask for the other one?

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Getting on Base

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How many hits would you expect your favorite baseball player to have in the next 15 at-bats?

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