How To Write A Letter To Your Teacher Introducing Yourself . Begin the letter by addressing the parents and then introducing yourself. Make sure to start off your letter by introducing yourself, perhaps what school/class you come from, and a little bit about yourself. FREE 7+ SelfIntroduction Letter Samples and Templates in PDF MS Word from www.sampletemplates.com When in doubt, stick to professor. Explain why you're writing then, briefly describe what you would like to accomplish by sending your letter. Have another person read it over.