8.8 Cones, Cylinders, & Spheres

Beginning Lesson

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Belly of the Beast

Were megalodons godfathers of the sea? Students model the bodies of different sharks using cylinders, and explore how the volume of a cylinder changes when its dimensions change. They learn that the megalodon was a massive ocean beast, but that its size may ultimately have led to its downfall.

Topic: Geometry (G)

Middle Lesson

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Pony Up

How do you increase the horsepower of a car engine? Students calculate the volumes of different car cylinders, and explore ways to make engine even more powerful by changing the dimensions of an engine's internal geometry.

Topic: Geometry (G)

End Lesson

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Cheese That Goes Crunch

Which is better: crunchy or puffy Cheetos? Students calculate the surface area : volume ratio for each snack to determine which one tastes cheesier.

Topic: Geometric Measurement and Dimension (GMD), Geometry (G), Modeling with Geometry (MG)