The Knoxville Board of Education will host an informal reception, Monday afternoon at 4:30, to thank Superintendent Dr. Randy Flack for his years of service to the Knoxville School District. The reception will be held in the Board of Education meeting room at the Administration Building, at 309 West Main Street in Knoxville. Dr. Flack’s retirement is effective at the end of this month, after 24 years of service to the Knoxville School District.