THE OBJECTIVES OF THIS STUDY WERE TO DEVELOP A PROGRAM OF CLASSROOM SIMULATION FOR THE PRESERVICE EDUCATION OF ELEMENTARY SCHOOL TEACHERS AND TO CONDUCT A TEST OF THAT PROGRAM. A SINGLE SIXTH-GRADE CLASSROOM WAS SIMULATED THROUGH THE USE OF FILMS AND PRINTED MATERIALS. A TEST GROUP OF 40 STUDENTS, DIVIDED INTO 4 GROUPS, WAS PRESENTED WITH 60 PROBLEM SEQUENCES. THE STUDENTS WERE ASKED TO MAKE AN APPROPRIATE RESPONSE TO EACH SITUATION AND THE EXPERIMENTER PROJECTED AN APPROPRIATE FEEDBACK SEQUENCE. FOUR METHODS WERE USED TO PRESENT THE SEQUENCES--(1) LARGE MOTION PICTURES, THE MOST REALISTIC, (2) SMALL MOTION PICTURES, INTERMEDIATE, (3) LARGE STILLS, INTERMEDIATE, AND (4) SMALL STILLS, LEAST REALISTIC. ANALYSIS OF VARIANCE IN THE POST-TEST SCORES REVEALED A SIGNIFICANT DIFFERENCE IN FAVOR OF THE SMALL STILLS, THE LEAST REALISTIC. ALL OTHER DIFFERENCES WERE INSIGNIFICANT. (PM)