Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit.

Shape, Dimension, and Geometric Relationships

- Understand quantity through estimation, precision, order of magnitude, and comparison. The reasonableness of answers relies on the ability to judge appropriateness, compare, estimate, and analyze error
Some attributes of objects are measurable and can be quantified using different tools

Measure and estimate lengths in standard units.