Letters of resignation should be addressed to the County Superintendent of Schools and directed to Human Resources. Human Resources Side Letters - San Bernardino City Unified School District.Ensure the most current form has been submitted. Human Resources - Classified is committed to providing outstanding customer service in the hiring, training, and retention of the most qualified employees. An employee wishing to leave in good standing shall file a written resignation with the appointing authority in the form of a Resignation Notice or a letter. In this article, we'll guide you through the essentials of writing a resignation letter when going back to school, ensuring you leave on good terms. San Bernardino County Elections Office. The former teacher allegedly wrote the victim dozens of letters and notes, arranged time for them to be alone and sexually abused her.