Describes Pedagogical Content Knowledge and focuses on the empirical research directly concerned with the relationship between science teachers' subject matter knowledge or structures and actual classroom practice. Concludes there is little evidence that a relationship exists. (PR)

Reports an instructional application of a theory of analogical reasoning. Uses the grinding of a sugar cube as an explanatory-predictive analogy for state transitions of water as a stimulus for promoting associations with other appropriate experiences in elementary school students. (PR)

Explores the use of narrative as a vehicle for sharing, communicating, and understanding personal experience. Argues that the narrative is a useful form of expression that is too often neglected in science education. Through stories students may begin to more successfully see the subtle dimensions of science and understand the ways in which…

Proposes methods by which laboratory practical exams may be structured to assess outcomes from laboratory instruction. Presents eight general considerations for writing and using practical exams. Describes four example laboratory exams involving a box camera, circuit boxes, floating objects, and light. (MDH)

Investigated the effects of studying an ecological system via computer simulation on 14- and 15-year-old students' (n=9) abilities to pose hypotheses; control and manipulate variables; and learn via icon, graph, and table display formats. Working with a simulation encouraged students to think hypothetically and test their hypotheses by controlling…

Presents two activities for introducing the topic of carbon dioxide: (1) Investigating Some Properties of Carbon Dioxide and (2) Building a Carbon Dioxide Generator. (PR)

Describes a class activity in which New York City high school environmental science students take a field trip to visit an active sewage treatment facility and landfill operation. (MDH)

Presents four stoichiometric problems and their solutions that use spot metal prices quoted from the newspaper to integrate economics and chemistry. (MDH)

Presents a technique that allows high school biology students to view materials not normally seen in the laboratory environment using a computer and videodisk technology. (MDH)

Presents a class activity in which students use trigonometry to calculate the height attained by a water rocket. Provides a lesson plan that includes a list of materials needed, procedures to carry out the experiment, suggestions to extend the activity, and a reproducible worksheet for the students to register their calculations. (MDH)

Presents a hands-on activity in which students try to identify 15 unknowns using only their sense of touch. This method reinforces the science process skills of observing, collecting and recording data, and analyzing data tables while requiring few reading skills. (MDH)

Discussion of science and math instruction for elementary and secondary students highlights the use of microcomputer-based laboratories (MBL). Data collection, storage, and display are discussed, the use of databases to organize and manage information is described, and the exchange of ideas with other students through telecommunications is…

Discusses the development and implementation of whole science teaching in a departmentalized fourth grade teaching situation. A description of a unit on weather is offered. (BB)

Provides fully developed library media activities that are designed to be used with specific curriculum units. Highlights include elementary school activities for music appreciation and physical education, reading and language arts, and science; and secondary school activities for science and social studies. (LRW)

Describes a project where students were involved in finding the most suitable site for a landfill in their community. This two-month project was conducted using team teaching. Two twelfth grade geoscience classes were involved. (PR)