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Lesson Plan

Determine whether a unit fraction is accurately represented by analyzing a model

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.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. The denominator in a fraction tells how many equal parts the whole or unit is divided into. The numerator tells how many equal parts you are talking about. Fractions can be modeled in multiple ways. 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 their understanding of equal parts to determine whether a model accurately represents a given unit fraction. Students are also asked to explain the mistakes in inaccurate models. This builds toward students’ future work with multiple representations of fractions in grades 3-5. Vocabulary: unit fraction, numerator, denominator, equal, partition
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