When the Board of Directors of the National Association for Gifted Children convenes in Atlanta with a retreat Friday and meeting Saturday, a Hall County educator will be leading the board’s agenda. Sally Krisel, director of innovative and advanced programs for Hall County Schools since 2006, officially began a two-year term as president of the national association Sept. 1, but the board retreat Friday will be the first time she serves actively in her capacity as president. She will also lead the board through the first of four meetings this year and will oversee the organization’s annual convention in Charlotte, N.C., this November, an event she said will bring about 2,500 educators together.