Grade 3 · Number and Operations—Fractions

CCSS.MATH.CONTENT.3.NF.A.2a

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.

Read this standard on the official Common Core site

Lessons that teach this standard

• Fractions on a Number Line: Plotting and Reading Them

  How to place a fraction on a number line by splitting each whole into equal parts, how to read one off, and why the number line makes fractions easier to order.