To register with Coursera to take online classes, use an existing Facebook account to create an account and log in. Another registration method is to provide a name, an email address and a password.
To register using Facebook, go to the Coursera website and click on the sign up link at the top right of the screen. On the screen that pops up, click on the Facebook sign up bar at the top. When the Facebook log in page pops up, click the okay button in the lower right, completing your registration with Coursera.
To register with an email address, click on the sign up link on the Coursera site, enter a name, an email address and a password. Clicking the sign up bar at the bottom completes your registration with Coursera.