A NATIONAL DEMONSTRATION EXHIBIT OF PROGRAMED INSTRUCTION AND TEACHING MACHINES WAS CONSTRUCTED, BASED ON THE PRINCIPLES OF PROGRAMED INSTRUCTION. THE EXHIBIT WAS DISPLAYED AT 44 LOCATIONS AND WAS VIEWED BY OVER 100,000 PEOPLE. THE MAJORITY OF THE POPULATION ATTENDING THE EXHIBIT CONSISTED OF TEACHERS, SCHOOL ADMINISTRATORS, AND STUDENTS WHO INTENDED TO ENTER TEACHING AS A PROFESSION. PROFESSIONALS, SERVING AS CONSULTANTS, GAVE SEMINARS AND LECTURES AND ANSWERED QUESTIONS OF VISITORS AT EACH TOUR SITE. AN EXHIBIT GUIDE CONTAINING INTRODUCTORY MATERIALS AND A BRIEF BIBLIOGRAPHY ON PROGRAMED INSTRUCTION WAS ALSO AVAILABLE. THE IMPRESSIONS OF THE VIEWERS, AS DETERMINED BY AN ATTITUDE QUESTIONNAIRE, WERE FAVORABLE TOWARD THE EXHIBIT. (AW)