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Lesson Plan

3. Use math drawings to represent equal groups and relate to repeated addition (A)

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.Content.2.OA.C.4 http://corestandards.org/Math/Content/2/OA/C/4
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Lesson objective: Apply knowledge of organizing objects into equal groups to create arrays.

This lesson provides an opportunity for students to apply their knowledge and understanding of arrays to a real-life situation. Students are asked to help a character determine whether or not she has enough tickets for herself and her two friends to each ride two carnival rides.

Key Concept students will use: 

  • A group of objects can be organized in an array and thought of as a number of equal groups.

Skills students will use:

  • Students may add to find the total and naturally point out a connection to skip-counting. (Grade 2, Unit 8)

Students engage in Mathematical Practice 7 (Look for and make use of structure). As they compose arrays they recognize that the array structure is a collection of rows and columns and that it can be seen as a unit.

Key vocabulary: 

  • array
  • columns
  • equal
  • organize
  • rows
  • share
  • skip count

 

Related content

Appears in

Using arrays for foundations of multiplication

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