On the next screen you can add students to your class. It doesn't matter whether these students have used the site before or not.
If we think we've found a match with a student who's used the site before and so already has an account, a yellow button will appear that says 'Choose an option'. Click on this, then select the student you want to add to the class from the cards that appear.
If the students have never used the site before, a new account will be created for them automatically.
Click Save.
Each new student will be given a registration code which they should use to log in for the first time. Find out more about Registration Codes here.