Susan S. Petreshene, M.A. (California State University, Sonoma), has been an elementary classroom teacher for more than 15 yars in the public schools of Concord and Novato, California.A She is the author of many articles in professional journals such as "Instructor" and "Social Studies Review," and has also written two practical books for teachers, "The Complete Guide to Learning Centers" (Pendragon House, Inc., 1978) and "Teaching Reading Skills: Visual, Auditory, and Kinesthetic Activities" (Zaner-Bloser, 1981), co-authored with Walter B. Barbe, Ph.D. Mrs. Petreshene is an active speaker