You can access Live Classes from your student dashboard, under the Live Class Schedule.
Just click on Register next to the class you wish to attend.
You will be redirected to a page where you can select the date and time of the class you wish to attend.
You will receive a confirmation email. On the day of the Live Class, you will receive another email with a link to join.
If you are unable to attend due to your schedule, see here for information on accessing classes at a later date.