Mrs. Costner is a product of Gaston County Schools and is a proud graduate of Bessemer City High School.  She received degrees from Gaston College, Belmont Abbey, and UNC-Charlotte.  She started working in Gaston County Schools as a teacher assistant at Arlington Elementary and moved to teaching third grade at Sadler Elementary.  She also served as a Title I Literacy Teacher at Bessemer City Central.  She recently served as an assistant principal at Ashbrook High School, Cherryville High School, and Sadler Elementary.