Lesson plan

Compare fractions with like numerators by ordering them from least to greatest

teaches Common Core State Standards CCSS.Math.Content.3.NF.A.3d http://corestandards.org/Math/Content/3/NF/A/3/d
teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1
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

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Big Ideas: Fractions with like numerators can be compared by ordering them from least to greatest or greatest to least. The symbols , and = can be used to explain how fractions compare to each other. This lessons builds on students' work with fractions. In this lesson, students are reasoning about the size of fractions to compare and order them. In the task, students compare the fractional lengths of each fish, reasoning about the size to determine how to compare the fractions and represent that comparison using symbols and models. The mathematical concepts in this lesson build towards students' future work with solving problems that involve comparing fractions with unlike denominators and numerators in later grades. Vocabulary: fraction, numerator, denominator, order, compare, reason, model, symbols (, =) Special Materials: Manipulatives (optional) Fraction strips