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Lesson Plan

4. Partition shapes into fourths (FP)

teaches Common Core State Standards CCSS.Math.Content.1.G.A.3 http://corestandards.org/Math/Content/1/G/A/3
teaches Common Core State Standards CCSS.Math.Practice.MP3 http://corestandards.org/Math/Practice/MP3
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Lesson objective: Partition shapes into fourths.

This lesson helps to build fluency with partitioning shapes into fourths. Basic shapes are used here because they help support student understanding of fractional models in the future. This work develops students' understanding that shapes, like rectangles, can be partitioned into four smaller equal shares that we call fourths and that one whole shape is four of the smaller equal shares.

Students engage in Mathematical Practice 3 (Construct viable arguments) as they construct arguments about their own partitioning, but also distinguish correct reasoning from that which is flawed.

Key vocabulary:

  • Equal share
  • Fourths
  • Partition
Related content

Appears in

Finding equal shares of shapes

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