Lesson plan

Divide multiples of 10 using knowledge of basic facts and place value

teaches Common Core State Standards CCSS.Math.Content.5.NBT.B.6 http://corestandards.org/Math/Content/5/NBT/B/6
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7
teaches Common Core State Standards CCSS.Math.Practice.MP8 http://corestandards.org/Math/Practice/MP8

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Big Ideas: We can divide large numbers by using our knowledge of division facts and the base-10 system. This task builds on students' knowledge of place value, basic division facts, and finding the area of a rectangular object. Students need to find the length of a missing length of a rectangle using division. This task uses "friendly numbers" where the dividend and divisor are powers of 10 and each contain compatible division facts. This task is the foundation for students to eventually divide larger whole numbers using estimation, picture models, and the standard algorithm. Vocabulary: multiples/powers, basic facts, place value, dividend, divisor, quotient, area Special Materials: grid paper (optional)