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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
teaches Common Core State Standards CCSS.Math.Practice.MP3
teaches Common Core State Standards CCSS.Math.Practice.MP5
teaches Common Core State Standards CCSS.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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