A graduate teaching assistant helps a college professor conduct their course, both in and out of the classroom. As a graduate assistant, you may be asked to grade assignments or prepare class presentations. You also provide support to students during office hours. In some cases, you have full teaching duties for a low-level class. Graduate teaching assistants are a crucial element of postsecondary education. To be a graduate teaching assistant, you must have current enrollment in a master’s degree program. You spend most of your time in the classroom but may need to run errands on campus. This is an ideal position for any grad students hoping to pursue a career in academics.