This document discusses measurement and how it is used in daily life. It defines measurement as describing attributes like length, weight, or temperature. It then outlines the Metric and Customary systems of units, providing examples of common prefixes and units. The document explains how to convert between the two systems and lists some common tools used for measurement like rulers, clocks, and scales. It describes how measurement is essential for tasks like knowing distances, times, or angles as well as when working with materials to ensure the correct amounts are used.