A review of the research literature on systematic instructional design indicates that few empirically supported guidelines exist for testing materials under development and for improving materials on the basis of feedback from potential learners. In an analysis of 17 textbooks on instructional design, eight specific aspects to be considered in…

A review of the literature on systematic instructional design suggests that few empirically tested guidelines exist for testing and revising materials during the development stages. The revision process can broadly be based on one of two distinct strategies, internal review or developmental testing. Internal review strategies include referring…

The intended, perceived, implemented, and achieved curriculum of high school biology classes in Israel was studied using a variety of data sources and research methodologies. The intended curriculum was identified by analysis of commonly used laboratory manuals. The perceived curriculum was captured by procuring the views of teachers and students…

In this study two high school students participated in the revision of a technology curriculum. These students were paid to work through lessons with one of the original authors to provide input for final editing and rewriting. The students were matched to the intended population for which the materials were originally written--poorly motivated…

This project was based on recent interview research which suggested that in choosing operations for story problems in mathematics many students are guided by computational considerations rather than meanings for the operations. This project aimed to refine the catalogue of strategies used by students and to design and test instructional materials…