Learners examine objects and find their volumes using geometric formulas in the 21st installment of this 25-part module. Objects take the shape of truncated cones and pyramids, and individuals apply concepts of similar triangles to find needed measures.

Concepts

cones, volume of cones, pyramids, volume of pyramids, math modeling

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Additional Tags

math

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Instructional Ideas

• Bring in three-dimensional objects, calculate the volume, and measure the amount of water they hold to check the math
• Emphasize new words with direct vocabulary instruction

Classroom Considerations

• Requires a proficiency with solving proportion equations

Pros

• Designed to make connections to real-life situations
• Uses images and diagrams to simplify the mathematics

Cons

• None

Common Core

8.G.B.7 8.G.C.9 MP1 MP2