Grade 1 · Measurement and Data

CCSS.MATH.CONTENT.1.MD.A.2

Express the length of an object as a whole number of length units, by laying multiple copies of a shorter object (the length unit) end to end; understand that the length measurement of an object is the number of same-size length units that span it with no gaps or overlaps.

Read this standard on the official Common Core site

Lessons that teach this standard

• Measuring Length with Units

  First grade measurement: put three objects in order by length, compare two lengths using a third object, and measure with same-size units laid end to end.