This document provides instructions for an assessment task requiring students to demonstrate their geographic understanding of population change in London over time. Students must answer two questions: 1) Describe how London's population has increased over time and explain the causes, using geographic concepts. 2) Describe how London's population has changed over time, including decreases and increases, and explain the reasons for changes using geographic concepts. The document provides guidance on answering the questions, including sample sentence starters and key geographic concepts to mention in the responses.