Description
The Exploratory Challenge is debriefed in the first discussion. The Exploratory Challenge and Discussion are the springboard for the main points of the lesson: (1) explaining why the formula for finding the volume of a cone or pyramid includes multiplying by one-third and (2) applying knowledge of the cone cross-section theorem and Cavalieri’s principle from previous lessons to show why a general pyramid or cone has volume 1/3 (area of base)(height).
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Credits
From EngageNY.org of the New York State Education Department. Geometry Module 3, Topic B, Lesson 11.
Available from engageny.org/resource/geometry-module-3-topic-b-lesson-11; accessed 2015-05-29.
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