Generally primary sources are works that are generated at the time or by the person directly being studied. Examples include (but aren't limited too):
truth and reconciliation hearings
clubs or associations dedicated to remembering
public memorials to past events/people
historical autobiographies or memoirs
scientific study of historical trauma or memory
Secondary sources are generally produced by other scholars who have studied the event or person you are interested. Generally these include books and articles. The papers that you write for this class will be secondary sources that will help future scholars interested in the same topic you will write about.