Explains how Venus changes visibility regularly from morning to evening because of its quick orbit time during part of the year. Includes a brief history of observations of this phenomenon and provides a detailed account from the Australian Aborigines. (DDR)

Details the summer workshop experiences of a participant in the EPIcenter (Earth Processes Information Center for Teachers) Project. Describes the impact of the experience on the professional practices of the classroom teacher. (DDR)

Details the summer workshop experiences of a participant in the EPIcenter (Earth Processes Information Center for Teachers). Describes the impact of the experience on the professional practices of the classroom teacher. (DDR)

Describes a two-week summer experience for teachers and students on a dig in Colorado looking for fossil records of the plants and animals in the area. (DDR)

Describes a summer program for teachers in the Hawaii Volcanoes National Park in which teachers share in hands-on activities that demonstrate volcanic processes including volcanic hazards, plate tectonics, and earthquakes. (DDR)