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Lesson Plan

9. Counting sets arranged differently (FP)

teaches Common Core State Standards CCSS.Math.Content.K.CC.B.5 http://corestandards.org/Math/Content/K/CC/B/5
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6
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Lesson objective: Find sets of objects that are arranged differently, but represent the same number of objects.

This lesson helps to build fluency with the idea that multiple representations can be used for the same number of objects.  Dot cards are used here because they support multiple arrangements of sets and patterns that students are familiar with. This work develops students' understanding that arranging a set of objects in different ways does not change the number of objects counted.

Students engage in Mathematical Practice 6 (Attend to precision) as they carefully count and look for patterns in multiple sets that represent the same number.

Key vocabulary:

  • matching

Special materials needed:

  • none
Related content

Appears in

Writing numbers and counting “How Many?” within 10

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