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Pyramid of Pennies

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67
questions

Act One

• Dan Meyer

March 12, 2013

How many pennies is that?

• 1.

What's a guess you know is too high?

• 2.

What's a guess you know is too low?

Act Two

Act Three

Sequel

• 4.

Marcelos Bezos is now trying to make a pyramid out of 1 billion pennies. How big would that be? Where should be build it?

• 5.

Each stack has 13 pennies which is a strange number to choose. Why do you think Marcelo Bezos chose it? (Hint: Not out of superstition.)

• Teacher note
Give groups of students a dollar in pennies. See how fast they can assemble seven stacks of thirteen pennies. Then ask them to use that as a sample to determine how long it would take them to build the entire pyramid.
• 6.

How fast could you make the pyramid Marcelos Bezos made?

• 7.

How heavy is the pyramid?

• 8.

If Bezos now wanted to add more levels to the pyramid, what's the best way for him to do that?

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