A "Means of bringing Bible characters and scenes to life by placing felt or felt-backed figures on a felt background. Some sets have as many as six hundred characters and objects. Illustrating a Bible story with these finely detailed characters helps to hold the interest of children. . . ."
Evangelical dictionary of Christian education, ed. Michael J. Anthony (Grand Rapids, MI: Baker Academic, 2001), s.v. "Flannelgraph" (p. 297), by Barbara Wyman.