Described is a demonstration that provides an introduction to nonequilibrium reaction-diffusion systems and the coupling of hydrodynamics to chemical reactions. Experiments that demonstrate autocatalytic behavior that are effected by gravity and convection are included. (KR)

Describes the institutional status of writing centers. Considers possible conflicts between the goals and loyalties of the writing center and those of the larger institution. Discusses budget, staffing, mission, methodology, space, and other issues regarding writing centers in the form of an extended electronic mail conversation. (HB)

Describes a demonstration using a variety of clear solutions in which the instructor asks students whether the solutions appear homogeneous or inadequately mixed. The solutions are then induced to fluoresce with ultraviolet light to provide visible evidence of homogeneity or nonhomogeneity. (PR)

Describes an innovative, but not revolutionary, secondary education science program that is modeled after American graduate education. Discussions include a comparison of pedagogical approaches, implementation, the teacher, facilities, and teaching strategies. (ZWH)

Describes procedures for identifying the protein ribonuclease from plant tissue extracts using mini-gel electrophoresis. (PR)

Describes a yearlong project that involves biology students in monitoring water quality. Includes details of the awareness phase, action phase, and presentation phase. Discusses student reaction to the project. (DDR)

Presents details of how a local stream is studied as part of a ninth-grade science curriculum, the goal of which is to learn about the school's ecosystem. Provides examples of specific group projects related to the stream. (DDR)

Argues that those who work in and support writing centers must have a sense of how their potential roles are changing if they are to provide institutional leadership. Looks at why the deeply traditional structure of universities is not working well in a postindustrial economy. Describes four things that writing centers should and must do to take a…

Discusses a few of the causes for less-than-optimum educational uses of the Internet. Highlights include problems with state-level plans; the fear of pornography and Web censorship; the location of computers in computer labs; unrealistic overvaluing of standardized tests; and the current poor quality of Web pages. (LRW)

Presents a pre-lab exercise, an experimental setup, and discussion of computer-generated graphs that can be used to study the motion and energy of a bouncing ball. (WRM)

Describes the construction of an inexpensive recirculating aquaculture system that can hold up to 46 pounds of fish, invertebrates, and mussels for classroom use. The system is versatile, requires little maintenance, and can be used for both teaching and research purposes. (WRM)

Presents a problem-based, discovery-oriented activity on sickle-cell anemia that has been used for five years with more than 3000 secondary-level students and 200 teachers. (WRM)

Presents pencil-and-paper and laboratory activities to be used as part of a high school-level biotechnology unit. (WRM)

Presents an annotated bibliography tracing 20 years of "Writing Center Journal" scholarship covering a variety of issues which include teacher training, critical thinking, writing apprehension, peer tutoring, Internet sources and individual instruction. Contains annotations of all the articles and reviews published in this journal's…

UCLA's laboratory school is experimenting with the teacher-leader role as a way to provide ongoing learning opportunities for teachers. Teacher leaders serve as in-house experts who provide information, modeling, and assistance to other teachers. Choosing appropriate leader roles and teachers with credible leadership skills helps. (MLH)