Lesson plan

# 5. Find volume of non-rectangular prisms (FP)

teaches Common Core State Standards CCSS.Math.Content.7.G.B.6 http://corestandards.org/Math/Content/7/G/B/6
teaches Common Core State Standards CCSS.Math.Content.7.NS.A.3 http://corestandards.org/Math/Content/7/NS/A/3
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards CCSS.Math.Practice.MP5 http://corestandards.org/Math/Practice/MP5
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7

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Lesson objective: Practice finding the volume of non-rectangular prisms.

This lesson helps to build skill with finding volumes of prisms. Images of three-dimensional figures are used here because it supports understanding the properties of a three-dimensional figure from a two-dimensional image. This work develops students' understanding that volume of a three-dimensional figure is always a measure of the amount of space taken up by the figure.

Students engage in Mathematical Practice 7: (Look for and make use of structure) as they learn the importance of the area of the base of a prism when finding the volume.

Key vocabulary:

• base
• face
• height
• prism
• volume