Describes, and illustrates by reference to chemistry, a systems approach to the development of instructional segments. Uses a model with Behavioral, Temporal, and Substantive elements as axes. (AL)

Presents an inventory of processes of scientific inquiry and describes its use in curriculum development and instructional planning. (AL)

Studied the superiority of audio-tutorial instruction among 79 students by using the pretest-posttest control group design, and concluded the absence of significant difference in achievement analyses both between the control and experimental groups and varying-aptitude subgroups. (CC)

Advocates the educational theories of David Ausubel as a basis on which to build science and mathematics curricula and instructional procedures. Offers interpretations of Piaget's conservation tasks in Ausubelian theory. (CP)

In this article a general model of mastery learning is developed and discussed using data gathered from operating applications of the mastery model in college classrooms. Suggestions for the implementation of the mastery model in the high school are also presented. (HM)

Reports an investigation concerning whether additional concrete experiences with objects will foster the logical development of blind children. The success of the Adapting Science Materials for the Blind (ASMB) units for various goals and various learner groups are discussed and tentative conclusions drawn. Significant gains were made. (EB)

The author presents an analysis of alternative views about why students should learn science, shares some anecdotal impressions about the heuristic potential of the concept "curriculum emphases" in a practical setting, and examines some problems related to teaching science to early adolescents. (Author/PB)