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

Lesson Plan

6. Solving Problems Using a Number Line (A)

teaches Common Core State Standards CCSS.Math.Content.2.MD.B.5
teaches Common Core State Standards CCSS.Math.Practice.MP5
Quick Assign

You have saved this lesson!

Here's where you can access your saved items.


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 by using a number line to add and subtract lengths.

This lesson provides an opportunity for students to apply their knowledge and understanding of addition and subtraction to a real-life situation. Students are asked to plan the arrangement of shelves on a bookcase given the heights of the books that need to fit on the shelves, and then create a diagram to show their arrangements.

Key Concept students will use: 

  • a number line to solve many types of addition and subtraction related to length.

Skills students will use:

  • representing numbers as lengths on a number line.
  • using a number line diagram as a tool to add and subtract lengths.

Students engage in Mathematical Practice 5 (Use appropriate tools strategically) as they use a number line diagram as a tool to anchor addition and subtraction work.

Key vocabulary: 

  • number line diagram
  • count on/count back

Special materials needed:

  • blank number lines (optional)
Related content

Appears in

Relating addition and subtraction strategies to length

Provide feedback