THIRTY STUDENTS IN GRADES 6 THROUGH 12 CLASSIFIED INTO HIGH, AVERAGE, AND LOW ABILITY GROUPS, USED EXPANDABLE POLYSTYRENE PLASTICS AND EQUIPMENT TO CONSTRUCT A FOAMED RUBBER ICE BUCKET TO PROVIDE AN INDICATOR OF THE SUCCESS OF THE POLYSENSORY SELF-INSTRUCTIONAL SYSTEM DEVELOPED FOR THIS EXPERIMENT. A PRETEST DETERMINED EXISTING KNOWLEDGES AND PROFICIENCIES. SINGLE CONCEPT FILMS, PROGRAMED INSTRUCTION BOOKS, LABORATORY EXPERIENCES, AND A TEACHER'S GUIDE WERE DEVELOPED FOR EACH OF FOUR INSTRUCTIONAL UNITS. CAPABILITIES OF THE SYSTEM TO HELP PUPILS ACQUIRE DEFINED LEVELS OF KNOWLEDGE AND SKILLS WERE EVALUATED BY ANALYZING--(1) PERFORMANCE TEST SCORES, (2) KNOWLEDGE TEST SCORES, (3) NUMBERS OF TIMES FILMS WERE REVIEWED, (4) ERRORS MADE IN THE PROGRAMED BOOKS, (5) STUDENT WORK PROCEDURES, (6) QUALITY OF FINISHED POLYSTYRENE PRODUCT, AND (7) THE PERFORMANCE DIFFERENCES BETWEEN AND WITHIN THREE ABILITY LEVELS. RESULTS INDICATED--(1) LABORATORY PERFORMANCE SCORES EXCEEDED THOSE DEFINED AS ADEQUATE, (2) PERFORMANCE SCORE VARIATION AND TIME VARIATION WERE AS GREAT WITHIN ABILITY GROUPS AS BETWEEN THESE GROUPS, (3) HIGH ABILITY GROUPS VIEWED THE FILMS MOST OFTEN AND LOW ABILITY GROUPS LEAST OFTEN, AND (4) THE QUALITY OF PRODUCTS PRODUCED INDICATED THAT ALL STUDENTS PERFORMED IN EXCESS OF MINIMUM ACCEPTABLE CRITERIA. IT WAS CONCLUDED THAT SUCH POLYSENSORY SELF-INSTRUCTIONAL SYSTEMS CAN BE EFFECTIVELY USED TO TEACH ALL TYPES OF KNOWLEDGES AND SKILLS SUCH AS THOSE STUDIED. AN EXTENSIVE BIBLIOGRAPHY IS INCLUDED. (EM)