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Adding Fractions with Unlike Denominators

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Overview:: Students reason about the meaning of adding fractions with unlike denominators in the context of an example problem. The mathematics task is intended to be a problem or question that encourages the use of mathematical practices. The dialogue is meant to show how students might engage in the mathematical practices as they work on the task.

Subject:: Mathematics
Level:: Upper Primary
Grades:: Grade 5
Material Type:: Lesson Plan
Author:: Education Development Center, Inc.
Provider:: Education Development Center, Inc.
Date Added:: 02/26/2019

Media Format:: Text/HTML

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Standards

NC.Math.5.NF.1

North Carolina Math Standards

Grade 5

Learning Domain: Number and Operations -- Fractions

Standard: Add and subtract fractions, including mixed numbers, with unlike denominators using related fractions: halves, fourths and eighths; thirds, sixths, and twelfths; fifths, tenths, and hundredths: Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers; Solve one- and two-step word problems in context using area and length models to develop the algorithm. Represent the word problem in an equation.

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NCLOR