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Lesson Plan

Calculate the decimal expansion of a non-perfect square root by rational approximation

teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards CCSS.Math.Content.8.NS.A.1 http://corestandards.org/Math/Content/8/NS/A/1
teaches Common Core State Standards CCSS.Math.Content.8.NS.A.2 http://corestandards.org/Math/Content/8/NS/A/2
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6
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Big Ideas: Finding which tenth and hundredth a square root is closer to gives us a good idea of a number's actual square root. Students will calculate the decimal expansion of a non-perfect square to the nearest hundredth by first finding out which two integers the square root is between and then deciding to which tenth and hundredth the square root is closer. Vocabulary: rational number, irrational number
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