Employee shall send a written notification to the supervisor at least 2 weeks in advance of resignation. 2. Complete the fillable PDF form using your computer.Implement resignation from MiamiDade County Public Schools (resignation letter attached);. 4. Dear Board Members: Please accept my resignation from the Miami-Dade County Public Schools for the following reason(s):. Signing in on a daily basis is the most important documentation of an employee's time and attendance.