Measurement and data

4.MD.A.1

Know the relative sizes of measurement units within one system, and express a larger unit in terms of a smaller one.

Practice for this standard

Measurement and units

Length, mass and capacity, and converting between units inside one system.
Telling time

Elapsed time between two clock readings, and converting between units of time.

Official wording and the full standard: CCSS.MATH.CONTENT.4.MD.A.1