Lesson plan

4. Comparing fractions with like numerators using number line and area models (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.MP6 http://corestandards.org/Math/Practice/MP6
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Lesson objective: Practice comparing fractions with like numerators using area models and number lines.

This lesson helps to build fluency with comparing fractions with like numerators. A variety of word problems are used here because they support students in developing a visual picture mentally later. This work develops students' understanding that multiple strategies can be used to visually compare fractions.

Students engage in Mathematical Practice #6 (Attend to precision) as they work to become more proficient. Students will use precise language when explaining their strategies for comparing and clearly describe how they reasoned about the size of fractions by using the size of the pieces to determine which fraction is greater.

Key vocabulary:

  • Compare
  • Denominator
  • Numerator

Special materials needed:

  • Fraction Pieces/Strips
  • Paper
  • Pencil