The Mississippi Museum of Natural Science proposes to build on its program of activities that involve children in science and bring them into contact with the approaches, objects and equipment that scientists use, with each activity designed to stimulate thinking and heighten interest in science. Cardinal features of the program are the development of hands-on exhibits, science kits for classroom use and a studied tie with the children's television program, "3-2-1 Contact." The goals are to coordinate these activities with hands-on science activities for students in grades 3-6, and to coordinate classroom activities with those at the museum, which conducts "3-2-1 Contact Days" throughout the year when students come to the museum and take part in experiments, observations and enrichment lessons and actively manipulate museum objects. The museum now will refine the program components, including improvement and duplication of the hands-on kits, continuation of the workshops for elementary teachers and development of new participatory exhibits dealing with insects and endangered species, and will present them to an expanded audience. One-third of the children in the state live below the poverty level, and fifty per cent represent minority populations. As most of these children lack such out-of-school experiences these informal science activities are particularly meaningful.
Cognitive research indicates that science experts commonly use diagrams as mediational tools for reasoning visually. But in science education materials and practices, visuals are typically "aids" rather than fundamental representations. This research will examine how students learn to comprehend, use, and construct diagrams as thinking tools. It will focus on the diagram-dense field of beginning optics. The project has two interacting phases: research on how students understand static optics diagrams, and development and refinement of prototype computer- based dynamic diagrams and diagramming tools. Specific tasks are: (1) Pilot research, and analysis of diagrams in optics texts, (2) research on instructional practices with these diagrams, (3) research on student understanding and use of diagrams, (4) design and develop interactive diagrams and a dynamic diagram-construction kit, (5) carry out research with prototypes, and (6) formulate and disseminate implications for creation and use of interactive diagrams in science education. Such research on visual education in science will help guide development of new curricula and software for science education. The project team of cognitive scientists, science educators, graphics specialists, and systems developers is devoted to promoting learning and reasoning in science with new data, theory, and innovative prototypes of dynamic diagrams. These interdisciplinary activities more directly link science education research, materials development, and classroom activities. Cost sharing is provided by the Institute for Research on Learning which is contributing indirect costs and APPEL which is contributing four MacIntosh II systems.