Can a graduate teaching assistant teach class they taken?

It depends on the university, department, and the specific course. While it's not unheard of for a GTA to teach a course they've previously taken, it's generally less common, especially for introductory or foundational courses.

Several factors influence this decision:

* Departmental Policy: Some departments may explicitly prohibit GTAs from teaching courses they've taken themselves, believing it necessitates a more experienced instructor.

* Instructor's Experience and Expertise: Even if allowed, the department might only allow it if the GTA demonstrates sufficient mastery of the subject matter beyond the undergraduate level. They might require additional training or mentorship.

* Course Complexity: A simple introductory course might be acceptable, but a complex or specialized course likely requires an instructor with broader experience.

* University Regulations: University-wide policies on teaching assistant qualifications might restrict who can teach which courses.

In short, there's no universal answer. You'd need to check with the specific university's and department's guidelines.