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Lesson Plan

1. The Carrot Patch: Use equal groups to understand multiplication (C)

teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7
teaches Common Core State Standards CCSS.Math.Content.3.OA.A.1 http://corestandards.org/Math/Content/3/OA/A/1
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Lesson objective: Understand that multiplication is an operation that uses a number of equal groups to show the total number of objects.

Students bring prior knowledge of repeated addition of equal groups from 2.O.A.4. This prior knowledge is extended to multiplication as students organize 24 students into equal groups. A conceptual challenge students may encounter is thinking about groups as one as opposed to individual objects. The concept is developed through work with organizing counters into equal groups, which supports students to think of equal groups as unit.

This work helps students deepen their understanding of operations because they learn multiplication can be thought of as repeatedly adding equal groups.

Students engage in Mathematical Practice 7 (Look for and make use of structure) as they recognize equal groups in multiplication.

Key vocabulary:

  • equal groups
  • multiplication

Special materials needed:

  • counters or other manipulatives to represent students in the task
Related content

Appears in

Exploring equal groups as a foundation for multiplication and division

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