This document provides information about the metric system of measurement and presents tasks for learning about measuring distances using metric units. It discusses the primary metric units for length - kilometers, meters, centimeters and millimeters. It defines their relative sizes and presents word problems asking to convert between units and measure distances. The tasks focus on using charts and tables to explain distances and routes within the MIO transportation system in Cali, Colombia using kilometers, hectometers, decameters and meters.