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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.Content.2.OA.C.4
teaches Common Core State Standards CCSS.Math.Practice.MP6
teaches Common Core State Standards CCSS.Math.Practice.MP7
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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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