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Lesson Plan

Compare two fractions with different numerators and denominators by using linear models

teaches Common Core State Standards CCSS.Math.Content.4.NF.A.2 http://corestandards.org/Math/Content/4/NF/A/2
teaches Common Core State Standards CCSS.Math.Practice.MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards CCSS.Math.Practice.MP5 http://corestandards.org/Math/Practice/MP5
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7
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Big Ideas: Fractions can be compared by comparing them to a benchmark fraction. Fractions can be compared by creating common denominators or common numerators. This lesson builds on grade 3 work of comparing two fractions with the same numerator or the same denominator by reasoning about their sizes. The task asks students to find a fraction that is between 3/5 and 8/10 using a number line(s) as a linear model. This lesson builds towards more complex work with adding, subtracting, and multiplying fractions later in grade 4. Vocabulary: fraction, equivalent, numerator, denominator, compare, comparison symbols (, =), greater than, less than, equal to, benchmark fraction Special Materials: Paper and pencils/dry erase boards and markers
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