Lesson plan

Approximate irrational numbers by using square tiles

teaches Common Core State Standards CCSS.Math.Content.8.EE.A.2 http://corestandards.org/Math/Content/8/EE/A/2
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.MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards CCSS.Math.Practice.MP5 http://corestandards.org/Math/Practice/MP5

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Big Ideas: Square roots of non-perfect squares can be approximated using perfect squares We can determine which two perfect squares a non-perfect square is between Students will explore an alternative way to approximate irrational numbers. This lesson uses a very visual representation, showing students how they can approximate irrational numbers by looking at perfect squares. Vocabulary: square root, perfect square Special Materials: graph paper