Lesson plan

Identify quantities that can create equal groups by using doubles facts

teaches Common Core State Standards CCSS.Math.Content.2.OA.C.3 http://corestandards.org/Math/Content/2/OA/C/3
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4

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Big Ideas: Doubles facts can help determine numbers that can be divided equally. Even numbers create equal shares. This task builds on students' work with addition 'doubles' facts. In this lesson students will hear a story about how Ajani and Ian share everything equally. Students will determine whether they can share a given number of tokens to play arcade games. Students will group using manipulatives and learn what makes a number even or odd by splitting a number into two equal groups. Students will conceptually understand the patterns that even and odd numbers make. The mathematical concepts in this lesson build towards students’ future work with building arrays, repeated addition, and multiplication. Vocabulary: even, odd, pairs, partners, share, fair, equal, leftover Special Materials: counters or unifix cubes tens frames number line 0-20 hundreds chart