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Lesson Plan

Examine patterns that occur when you multiply or divide both the numerator and denominator by the same number

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 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 size. The task asks students to divide a series of squares into smaller and smaller parts and make observations about how the numerators and denominators change as a result of the partitioning. This lesson builds towards more complex work with adding, subtracting, and multiplying fractions later in grade 4. Vocabulary: fraction, compare, equivalent, numerator, denominator, multiply, divide, patterns, partition/split
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