Your device is currently offline. You can view downloaded files in My Downloads.

Lesson Plan

10. Use arrays to create equal groups (A)

teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Content.2.OA.C.4 http://corestandards.org/Math/Content/2/OA/C/4
Quick Assign

You have saved this lesson!

Here's where you can access your saved items.

Dismiss

Card of

or to view additional materials

You'll gain access to interventions, extensions, task implementation guides, and more for this lesson.

Lesson objective: Solve problems using skip counting and repeated addition.

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 friend solve a problem by organizing oranges into arrays and using skip counting and repeated addition strategies.

Key Concept students will use: 

  • Skip counting or repeated addition can be used to find the total number of objects in an array because there is the same number of objects in every row or column.

Skills students will use:

  • When representing arrays with rows of 2 and 5, students may add to find the total and naturally point out a connection to skip counting by twos or fives. (Grade 2, Unit 8)

Students engage in Mathematical Practice 2 (Reason abstractly and quantitatively) as they make connections between equal groups of objects and arrays and the concept of adding equal addends.

Students engage in Mathematical Practice 3 (Reason abstractly and quantitatively) as they make connections between equal groups of objects and arrays along with the concept of adding equal addends.

Key vocabulary: 

  • arrange
  • arrays
  • columns
  • efficient
  • equal groups
  • equation
  • repeated addition
  • rows
  • skip counting
  • strategy

 

Related content

Appears in

Using arrays for foundations of multiplication

Provide feedback