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Lesson Plan

Understand that rectangles can have the same perimeter but different areas by solving real world problems

teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards CCSS.Math.Content.3.G.A.1 http://corestandards.org/Math/Content/3/G/A/1
teaches Common Core State Standards CCSS.Math.Content.3.MD.D.8 http://corestandards.org/Math/Content/3/MD/D/8
teaches Common Core State Standards CCSS.Math.Practice.MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7
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Big Ideas: Rectangles can have the same perimeter but different areas. Area and perimeter describes a shape's measurement. This lesson builds on developing students' understanding of perimeter, area, and shapes attributes. This task requires students to use strategies to distinguish between perimeter and area. Students are expected to reason and make sense of the characteristics and relationships between a rectangle's area and perimeter. Students are presented with a rectangular garden and asked to use strategies to find the largest area by examining the lengths of the sides and the perimeter provided. This builds toward the ability to apply area and perimeter formulas for rectangles in real-world and mathematical problems. Vocabulary: area, perimeter, square unit, unit, length, width Special Materials: Dot paper or graph paper Inch and centimeter ruler (or measuring tape) Printout of the models used in task Inch tiles (optional) Geoboard (optional)
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