How To Write A Letter To Professor About Grades . This is a formal request that you change my grade in biology 101 for the fall semester date from a c to a b. Yours sincerely/ faithfully, _____ (name), _____ (roll number) similar search terms: Letter to Professor Regarding Grades (Sample Letters) from www.docformats.com Add your teacher’s information into the recipient field. You can email your professor initially, however, if you it is the only way to contact them. What to include in an email request.