This document provides guidance for creating a task using a web tool for teaching a CLIL unit on population pyramids. It outlines an example task that has students working in pairs to research population data for Altafulla, Spain from 2015 and create a population pyramid for the town using an online graphic generator tool. The task description provides steps for students to follow, including getting the data from a statistics website and constructing the pyramid with the tool. It also suggests having students discuss what the pyramid reveals about Altafulla's development level. A link to a tutorial for the graphic generator tool is included.