Advance your career with professional and continuing education from the University of San Diego. Applying for teaching jobs?Your teacher cover letter can make or break your application. To apply for a job: 1. Click on the Apply tab from job details: 2. The document is a sample application letter for a teaching position. Fill it out completely, attach your resume and a brief cover letter. The sample in the answer below is a good cover letter. To apply, select the job title you are interested in and click the "Apply" link. To write an application letter for a teaching position, start with a formal greeting and clearly state your interest in the role.