Submit the completed application, cover letter, resume, and transcripts. The subject line should include the position number(s) you are interested in.​.The purpose of a cover letter is to introduce yourself and to demonstrate the fit between your background and the advertised position. Applying for teaching jobs? Your teacher cover letter can make or break your application. As to the kinds of things to put in the document. Write about your teacher education course and what you enjoyed. The document provides guidance on creating an effective cover letter for a teaching position. Explore expertly crafted formats and samples for school teacher job applications. The purpose of a cover letter is to introduce yourself and demonstrate the fit between your background and the advertised position.