IntroductionThe goal of any curriculum development effort can be plainly put: it is to change instruction. At the secondary school level this effort is usually focused on some one subject or limited set of subjects, and takes the form of designing a new course. Depending on the ambition and resources of the individual curriculum project, it will produce a course that differs from its predecessors in purposes, content, style, approach, flexibility, richness and diversity of learning materials, and much else. That is what curriculum development-a misnomer really-means in practice.Sooner or later each secondary school curriculum development project has come to realize, sometimes to its chagrin, that curriculum development alone is not enough. No matter how carefully designed the emerging course is, no matter how capable it is in principle of serving the needs of students, and indeed, no matter how well the course seems to work when tried out experimentally, the unhappy truth is that in general practice the course simply will not work as the designers intend unless the generality of teachers who use it are prepared to make it work.Thus, shotgun wedding or no, curriculum development and teacher preparation go together. This seems so self-evident now that it hardly bears stating. Yet the fact remains that even if we have progressed beyond the early simplistic notions of "teacher proof' courses, we have not, by and large, progressed to the point where the difficult problems of teacher preparation-exacerbated, if not created, by new curriculum developmentsreceive the same intensive attention as curriculum development. It is not that'there has not been some added investment in recent years in teacher preparation-the National Science Foundation institute programs alone, for instance, have underwritten teacher training on an unprecedented scale [38, 391, and the U.S. Office of Education has increased its involvement [15, 341. Rather, it is that in proportion to the magnitude, complexity, recalcitrance, and recognized importance of the problem, the investment of funds and human intelligence in the cause of fundamental reform of teacher education has been meager. One result of this meagerness, the one that has the most direct impact on the work of curriculum developers, has been retardation in the effective implementation of the new secondary school courses. , 55(4): 555-568
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Science Education