Air Mattress

3 Act Math

Act 1

1. How long will it take to air up the mattress?
2. Write down a guess.

Act 2

3. What information would be useful to figure this out?
4. Write down some questions you have in your head right now.
Inflated Dimensions
Pump Speed

Act 3


5. What would happen if the mattress was half as tall?
6. What would happen if the pump speed was half as fast?
7. Design a mattress that would take half as long to fill. (Andrew Stadel)

Common Core Standards
Use volume formulas for cylinders, pyramids, cones, and spheres to solve problems.
apply the formulas for the volume of three-dimensional figures, including prisms, pyramids, cones, cylinders, spheres, and composite figures, to solve problems using appropriate units of measure


Credit: Coleman, Andrew Stadel, Dr. Clayton Edwards

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