Lesson plan

Solve for the perimeter and area by analyzing a polygon made of a rectangle and square

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teaches Common Core State Standards 3.G.A.1 http://corestandards.org/Math/Content/3/G/A/1
teaches Common Core State Standards 3.MD.D.8 http://corestandards.org/Math/Content/3/MD/D/8
teaches Common Core State Standards MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards MP7 http://corestandards.org/Math/Practice/MP7
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Big Ideas: Area and perimeter describes a polygon's measurements. Area and perimeter can be found using multiple strategies. 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 will have to make sense of the characteristics and relationships between the shape's area and perimeter. Students will describe, analyze, and examine the perimeter, area, and attributes of squares and rectangles. Students are presented with a shape and asked to use strategies to find the perimeter and the square area by examining the length of the sides. 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: Inch tiles (optional) Geoboard (optional) Dot paper or graph paper Inch and centimeter ruler (or measuring tape)