Create your first class
You'll get a join code to put on the board. Students go to the student link, type the code and their name, and they're in.
One more step
Syntaxia is invite-only for teachers, so that student data stays visible only to the people who should see it. Enter the invite code you were given and you're in for good.
Don't have one? Email blumedora@gmail.com and ask for a Syntaxia invite code.