Lesson plan

Shells at the Beach: Understand the quotient of a division problem, given the number in each share, as representing the number of shares

teaches Common Core State Standards CCSS.Math.Content.3.OA.A.2 http://corestandards.org/Math/Content/3/OA/A/2
teaches Common Core State Standards CCSS.Math.Content.3.OA.A.3 http://corestandards.org/Math/Content/3/OA/A/3
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.MP7 http://corestandards.org/Math/Practice/MP7

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Big Ideas: Division is partitioning into an equal number of shares. A quotient can be interpreted as either the number of shares or the number in each share. This lesson builds on students' prior knowledge of division being represented by equal groups. In this lesson, students will develop an understanding of division as the number of shares when the total objects are partitioned into equal shares. Students will examine ways in which they can partition a number in different ways. This task builds toward future work with number sentences, fractions, and eventually algebra. Vocabulary: division, partition, shares Special Materials: Counters (optional)