This document provides information about Down Syndrome. It explains that Down Syndrome is caused by having an extra gene and impacts appearance and development. It notes that while people with Down Syndrome may develop differently, they can still go to school, have friends, and enjoy activities. The document encourages inclusion and friendship towards those with Down Syndrome and warns against teasing or exclusion. It provides tips for welcoming a friend with Down Syndrome such as introducing yourself and asking if they need help.