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Lesson Plan

Compose a fraction with the area model by joining unit fractions

teaches Common Core State Standards CCSS.Math.Practice.MP1
teaches Common Core State Standards CCSS.Math.Content.3.G.A.2
teaches Common Core State Standards CCSS.Math.Content.3.NF.A.1
teaches Common Core State Standards CCSS.Math.Practice.MP2
teaches Common Core State Standards CCSS.Math.Practice.MP4
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Big Ideas: A fraction can be generated by composing the unit fractions. The denominator is the total number of equal shares in a whole and the numerator is the number of parts represented. This lesson builds on students’ work with partitioning area models and number lines into equal shares. This task uses a scenario at a farm where students will be naming, creating, and completing fractions of gardens by composing unit fractions. Students will combine unit fractions to name fractions and gain a deeper understanding of the numerator and denominator. The mathematical concepts in this lesson build toward students’ future work with naming and decomposing fractions, comparing fractions, and equivalent fractions. Vocabulary: fraction, unit fraction, numerator, denominator
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