# 9. Use fractions to show a distance from zero (FP)

teaches Common Core State Standards CCSS.Math.Content.3.NF.A.2 http://corestandards.org/Math/Content/3/NF/A/2
teaches Common Core State Standards CCSS.Math.Content.3.NF.A.2b http://corestandards.org/Math/Content/3/NF/A/2/b
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4

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Lesson objective: Identify fractional distances on a number line and compare distances from zero.

This lesson helps to build procedural skill with finding fractional distances. Number lines are used here because they highlight that fractions are one number that tell us about a distance from zero. This work develops students' understanding that fractions live on the number line denoting a distance from 0, just as whole numbers do.

Students engage in Mathematical Practice 4 (model with mathematics) as they use number lines to model the distances travelled.

Key vocabulary:

• fraction
• distance
• denominator
• number line
• numerator

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