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Grade:
3-5Subject:
Mathematics |

Posted 12/19/2013 by Curriculum Associates (Curriculum Associates).

Common Core Math Grade 3 Comparing Fractions

Curriculum Associates, Billerica, MA

Concepts Taught: fractions

In this lesson, students apply their understanding of fractions to compare two fractions. They use fraction models and number lines to help them reason about the size of unit fractions.

Students learn to look carefully at the numerators and denominators of both fractions they are comparing to determine if the numerators or the denominators are the same. If the denominators are the same, the students know the fractions are built from the same size unit fraction and the fraction with the most parts in the numerator is larger. If the numerators are same, then students reason about the size of the unit fractions used to make each of the two fractions.

Students apply this understanding to solve problems that involve comparing fractions and explain why one fraction is larger or smaller.

Aligned with Common Core standard 3.NF.A.3d

http://www.oercommons.org/authoring/4599-common-core-math-grade-3-comparing-fractions