Develop understanding of fractions as numbers.
Understand a fraction as a number on the number line; represent fractions on a number line diagram. (3.NF.2)
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. (3.NF.2a)
More information and the complete College and Career Readiness Standards can be found here.