Lesson plan

Apply additive reasoning by calculating the volume of a solid made up of two or more rectangular prisms

teaches Common Core State Standards CCSS.Math.Content.5.MD.C.4 http://corestandards.org/Math/Content/5/MD/C/4
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7

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Big Ideas: We can find the volume of an unfamiliar solid by decomposing it into familiar shapes like right rectangular prisms or cubes. This lesson builds on students’ previous work with finding the volume of rectangular prisms, by counting the cubic units. In this task, students will calculate the volume of a solid figure composed of several rectangular prisms by counting cubes. The mathematical concepts in this lesson prepare students for a deeper understanding of calculating the volume of solids that are composed of more than one solid. Vocabulary: rectangular prism, volume, solid