THIS REPORT IS A DOCUMENTATION OF THE EFFORTS OF THE STAFF OF THE ASPEN ELEMENTARY SCHOOL, ASPEN, COLORADO, TO INDIVIDUALIZE THE INSTRUCTIONAL PROGRAM IN GRADES K-6. INVOLVED IN THIS WERE APPROXIMATELY 450 STUDENTS AND A STAFF OF 13 TEACHERS. THE INDIVIDUALIZATION OF INSTRUCTION WAS ACCOMPLISHED THROUGH THE MODIFICATION OF THE TEACHING-LEARNING PROCESS AND THE USE OF PROGRAMED MATERIALS. ACTIVITIES WERE CONCENTRATED IN THE AREAS OF MATHEMATICS AND READING AND TO A LESSER EXTENT IN SCIENCE. EACH TEACHER WAS RESPONSIBLE FOR PRESENTING MATERIALS TO SUIT EACH MEMBER OF HER CLASS REGARDLESS OF THE LEVEL AT WHICH THE STUDENT WAS PERFORMING. SUMMARIES ARE PRESENTED OF THE TEACHERS' AND PARENTS' REACTIONS, EVALUATION OF THE PROGRAM, AREAS NEEDING IMPROVEMENT, STUDENT ACHIEVEMENT, AND RECOMMENDATIONS. THE APPENDIXES CONTAIN STUDENT EVALUATION FORMS AND EXAMPLES OF LETTERS TO PARENTS. (JH)