Throughout the 1980s there has been a remarkable rise in the retention rate of Australian students in secondary education. Although the absolute numbers of students undertaking the traditional upper secondary school preparatory subjects for Engineering courses has been increasing, their proportion as a percentage of the whole Year 12 group has simultaneously been decreasing.In the face of this situation, the Faculty of Engineering at Monash decided in 1989 to ask the Faculty of Education to offer special bridging courses in chemistry and physics to students who had the appropriate high entry scores, but who had not studied either one or the other of these subjects during their Year 12 program.After an initial period of data collection involving researching the chemistry and physics courses, two intensive special bridging courses to be taken over one semester were designed to meet the needs of these students. The first four years of the program have produced very encouraging results. The paper describes the rationale behind the design of these courses and the range of teaching and learning strategies that have been employed. It includes a discussion of some of the conditions that are believed to be necessary to ensure the success of such a bold educational experiment.