There are two ways to register a new course on Expert TA. This will depend on whether or not your instructor has chosen to integrate with an LMS System (Blackboard, Canvas, etc.).
If your instructor is not using an LMS, you will be given a registration URL. These links are commonly provided via a syllabus or shared through email.
Copy and Paste the registration link you receive into your browser. Once at the registration web page, you will be prompted to enter your account information.
LMS users (Blackboard, Canvas, etc.)
If your instructor has chosen LMS integration, you will register for Expert TA and access assignments by going into your LMS and clicking on assignment links. This action brings you directly to the Expert TA system.