Lesson plan

7. Comparing fractions with like denominators, including fractions > 1 (FP)

teaches Common Core State Standards CCSS.Math.Content.3.NF.A.3 http://corestandards.org/Math/Content/3/NF/A/3
teaches Common Core State Standards CCSS.Math.Content.3.NF.A.3d http://corestandards.org/Math/Content/3/NF/A/3/d
teaches Common Core State Standards CCSS.Math.Practice.MP5 http://corestandards.org/Math/Practice/MP5
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Lesson objective: Practice comparing fractions with like denominators, including fractions greater than one.

This lesson helps to build procedural skill with comparing fractions with like denominators. Visual models are used here because it supports the development of student thinking around fractions. This work develops students' understanding that fractions with like denominators can be compared in a variety of ways and pushes them towards reasoning more abstractly about the size of the numbers being compared.

Students engage in Mathematical Practice 5 (Use appropriate tools strategically) as they determine which visual model they can use to compare given fractions. Students have been introduced to number lines, area models, and tape diagrams. 

Key vocabulary:

  • area model
  • compare
  • denominator
  • number line
  • numerator
  • tape diagram

Special materials needed:

  • fractions strips
  • paper
  • pencil