Learn what to include in your cover letter for a teaching position when you have no experience and use our template and examples as a guide. Dear Matthew Johnson, I am writing to express my keen interest in the Substitute Teacher position at Reliable Logistics Systems, as advertised on your website.If your application is accepted, you'll be entered into our New Teacher Finder where you can search for jobs, apply, and find your ideal position! I am writing to express my deep interest in the open elementary-level teaching position in your school district. Complete Application.