This is a progress report of an individualized three-year science course for use in the senior high school. The course integrates biology, chemistry, and physics with smaller amounts of astronomy, geology, meteorology, oceanography and space exploration. The course is currently in the second year of tryout in the Elk River, Minnesota, school district. The course specifically presents material in small packages called Mini-units. Each mini-unit includes an objective specifying the behavioral change that the student is to achieve and suggested activities, experiments, readings, problems, visual aids and tests to help in the achievement. The report includes a review of the project history, the philosophy and goals, materials, operational modes, evaluation procedures, expenditures and project significance. Subjective evidence to show the success of the project is claimed. Objective evidence is in the process of being collected through a testing program. The appendix contains (1) an abstract of the progress report, (2) a progress report form for mini-units, (3) a progress report form for work not directly related to mini-units, (4) a cumulative record for a student, and (5) a sheet stating the criteria for award of grades. This work was prepared under an ESEA Title III contract. (LC)