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Lesson Plan

Find the surface area of a rectangular prism by decomposing its net into rectangles

teaches Common Core State Standards CCSS.Math.Content.6.EE.A.2c
teaches Common Core State Standards CCSS.Math.Content.6.G.A.4
teaches Common Core State Standards CCSS.Math.Practice.MP4
teaches Common Core State Standards CCSS.Math.Practice.MP6
teaches Common Core State Standards CCSS.Math.Practice.MP7
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Big Ideas: 3-dimensional figures can be represented by 2-dimensional nets. The net of a rectangular prism can be decomposed into rectangles to determine its surface area. This lesson builds on students' work finding composite areas by decomposing complex shapes into polygons that have area formulas. In this task, students compare the amount of netting it takes to make a World Cup soccer goal and a middle school soccer goal. This lesson builds toward work in sixth and seventh grade on finding surface area of three-dimensional objects composed of triangles, quadrilaterals, and polygons. Vocabulary: 2-dimensional shape, 3-dimensional figure, area, composite area, decompose, edge, edge length, face, formula, net, rectangular, prism, square units, surface area
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