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3.NF.A.2

Understand a fraction as a number on the number line; represent fractions on a number line diagram.

a Represent a fraction $1/b$ on a number line diagram by defining the interval from 0 to 1 as the whole and partitioning it into $b$ equal parts. Recognize that each part has size $1/b$ and that the endpoint of the part based at 0 locates the number $1/b$ on the number line.

b Represent a fraction $a/b$ on a number line diagram by marking off $a$ lengths $1/b$ from 0. Recognize that the resulting interval has size $a/b$ and that its endpoint locates the number $a/b$ on the number line.

Tasks

Locating Fractions Less than One on the Number Line
Closest to 1/2
Which is Closer to 1?
Locating Fractions Greater than One on the Number Line
Find 1 Starting from 5/3, Assessment Variation
Find 1/4 Starting from 1, Assessment Version
Find 7/4 starting from 1, Assessment Variation