Maryland College and Career-Ready Standards
MD.MA.1.MD. Measurement and Data (MD)
1.MD.A. Measure lengths indirectly and by iterating length units.
1.MD.A.2. Major Standard: 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. Limit to contexts where the object being measured is spanned by a whole number of length units with no gaps or overlaps.
1.MD.A.2.1. Knowledge that length is the distance between the two endpoints of an object.
1.MD.A.2.2. Ability to identify a unit of measure.
1.MD.A.2.3. Knowledge of nonstandard (e.g., paper clips, eraser length, toothpicks) as well as standard units of measurement.