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Graduate Assistant Cover Letter Example

A PhD graduate teaching assistant's cover letter built on section evaluation scores, a course pass-rate gain and peer TA training.

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The graduate assistant cover letter, editable

Riley Patel
Graduate Teaching Assistant, PhD Candidate in Sociology
Ann Arbor, MIriley.patel@example.com(734) 555-0122

October 17, 2026

Department Chair
[University name]
[City, State]

Dear [Hiring manager's name],

As a third-year PhD student in sociology, I've taught my own discussion sections for Introduction to Sociology for four semesters, currently leading two sections of 22 students each under a faculty member's large lecture course. I'm applying for the Graduate Assistant opening in your department because the position combines a methods-course TA role with your department's undergraduate research mentoring program, a combination that matches exactly what I want to keep developing.

My section evaluation scores have averaged 4.5 out of 5.0 across four semesters, and the pass rate on the course's statistics module rose from 71% to 89% in the two semesters after I introduced weekly problem-solving workshops ahead of each exam. I've also co-authored one peer-reviewed article with my advisor and presented research at two regional conferences during my assistantship.

I hold a graduate certificate in college teaching and have completed our university's TA training institute, and I hold weekly office hours that regularly draw 8 to 10 students rather than the one or two typical for a discussion section leader. I'm comfortable grading to a shared rubric across multiple TAs to keep evaluation consistent, and I've trained two newer TAs on our department's grading calibration process.

I would welcome the opportunity to bring that same teaching consistency to your department and to talk with you about which course or research mentoring role I'd support first. I'm glad to share my teaching evaluations or a sample workshop I've run. Thank you for considering my application.

Sincerely,

Riley Patel

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Why this letter works

  1. Paragraph 1

    Names the exact combination the posting offers

    Pointing out the position pairs a methods TA role with a research mentoring program, and that this specific combination is what the candidate wants, shows genuine fit rather than a generic assistantship application.

  2. Paragraph 2

    Evaluation score plus a specific pass-rate change

    A 4.5 average evaluation score paired with a statistics pass rate rising from 71% to 89% after a concrete change gives a department two different, checkable measures of teaching effectiveness.

  3. Paragraph 3

    Shows leadership among peer TAs, not just students

    Training two newer TAs on grading calibration shows this candidate contributes to departmental teaching quality beyond their own sections, a mark of readiness for more responsibility.

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Questions about graduate assistant cover letters

Should a graduate assistant letter focus on teaching or research?

Match whichever the specific assistantship emphasizes. A teaching assistantship should lead with section evaluations and any curriculum contributions; a research assistantship should lead with your specific project contributions and any resulting publications or presentations.

How do I show teaching results as a graduate student?

Cite section evaluation scores, and if you've made a specific change, like adding review sessions, show the resulting pass rate or grade distribution shift. Even limited teaching experience can show measurable impact if you track it.

Should I mention training other teaching assistants?

Yes, if you've done it. Mentoring peer TAs on grading calibration or classroom management shows department-level contribution beyond your own assigned sections, which matters for more competitive or senior assistantship positions.

What if my experience is mostly grading, not teaching sections?

Describe the volume and consistency of your grading work, such as maintaining a rubric across a large course, and any communication with the instructor about grade distributions or common student errors you flagged.

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