Lesson plan

Name the area of shapes using unit fractions by determining the equal regions into which the whole is partitioned

teaches Common Core State Standards CCSS.Math.Content.3.G.A.2 http://corestandards.org/Math/Content/3/G/A/2
teaches Common Core State Standards CCSS.Math.Content.3.NF.A.1 http://corestandards.org/Math/Content/3/NF/A/1
teaches Common Core State Standards CCSS.Math.Practice.MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6

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Big Ideas: A fraction describes the division of a whole into equal parts or equal regions. The denominator in a fraction tells how many equal parts or equal regions the whole or unit is divided into and the numerator tells how many equal parts you are talking about. The fraction name (half, third, etc) indicates the number of equal parts in the whole. Fractions can be modeled in multiple ways. This lesson builds on students’ experiences naming unit fractions when shapes have been partitioned into 2, 3, 4, 6, or 8 equal parts. The task focuses on students using fractions to describe the area of a shape that has been partitioned into 2, 3, 4, 6, or 8 equal regions (regions which may consist of more than one part). Students are asked to describe a model using math language and write a fraction that represents the model. This builds towards students’ future work with multiple representations of fractions in grades 3-5. Vocabulary: numerator, denominator, area, fraction, unit fraction, partition, equal groups Special Materials: Colored pencils A straight-edge tool for when students are constructing their own layouts for Michelle's garden Access to a color printer/color projector (optional)
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