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Lesson Plan

Determine the size of the whole by analyzing the size of the unit fraction

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.2a http://corestandards.org/Math/Content/3/NF/A/2/a
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7
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Big Ideas: The placement of unit fractions on a number line can help you determine the placement of one whole. This lesson builds on students’ experiences partitioning number lines and shapes into 2, 3, 4, 6, or 8 equal regions or parts. This task focuses on students using the understanding that the denominator indicates the total number of equal parts into which the whole is partitioned, and therefore the area of one section can be used to determine the area of the whole. This builds toward students’ future work with multiple representations of fractions in grades 3-5. Vocabulary: unit fraction, numerator, denominator, equal, partition, area, whole
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