Grade school teachers, high school teachers, and community college and entry-level professors of Civil War history throughout the country have an opportunity to learn practical classroom ideas and resources for teaching the topic during the fourth annual Civil War Teachers Institute, a free training event sponsored by Virginia Tech's Virginia Center for Civil War Studies and the Civil War Preservation Trust in cooperation this year with Centre College and the Kentucky Heritage Council. The institute will be held Aug. 5-7 at the Mariott Griffin Gate in Lexington, Ky.