You can view - and edit - your school code on your School details page.
When your students log in to Sumdog, they need to identify who they are.
Each school has a unique school code, which means that the students' usernames need only be unique across the students in that school.
Each student has a default username, which is unique across all of Sumdog's users. Because there are so many users, though, these usernames can be difficult to remember. So we also let students log in using a simpler, customizable username, together with a school code.
Teachers don't need a school code to log in if you enter the e-mail address you used to create your Sumdog account as the username.