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

Lesson Plan

7. Add fractions with like denominators (FP)

  • Created by:
  • Standards:
  • Tags:
teaches Common Core State Standards CCSS.Math.Content.4.NF.B.3 http://corestandards.org/Math/Content/4/NF/B/3
teaches Common Core State Standards CCSS.Math.Content.4.NF.B.3a http://corestandards.org/Math/Content/4/NF/B/3/a
teaches Common Core State Standards CCSS.Math.Content.4.NF.B.3b http://corestandards.org/Math/Content/4/NF/B/3/b
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4

You have saved this lesson!

Here's where you can access your saved items.

Dismiss

Card of

  1. Begin lesson Begin assignment

Tip: swipe on touch devices, use your keyboard's ← and → arrow keys, or clicker buttons to quickly navigate the lesson plan

or to view additional materials

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

Lesson objective: Add fractions with like denominators using a number line.

This lesson helps to build procedural skill in adding fractions with like denominators. Students work toward this goal in 3 ways:

  1. By using their understanding of decomposing fractions into unit and non-unit fractions.
  2. Through the use of joining lengths on a number line.
  3. Finding values that make equations true.

Students engage in Mathematical Practice 4 (modeling with mathematics) by modeling addition as lengths on a number line. This is especially important in the practice section of the lesson as students verify sums using the understanding that the size of the unit lengths does not change when adding fractions with like denominators. Mathematical Practice 2 (reason abstractly and quantitatively) is important as students reason about fractions with and without the support of a number line.

Special Materials: Optional: Blank number lines
Provide feedback