Below are examples of resignation letters for the school administration and principal, coworkers, and parents of students. I am writing to notify you of my resignation from POSITION at SCHOOL, effective DATE.Please accept this letter as a notice of my resignation. Do you think I should write another letter, attaching documentation from my dad's condition..? Over the next (amount of time left at company), I will ensure as much as I can that my projects are complete. However, I haven't told anyone that I plan to leave (and don't want them to find out).