Identifies four programs meeting the criteria for being considered exemplary in biology education in grades 7 through 12 nationwide. Provides the selection criteria for program goals, curriculum, instruction, and staff. Expresses the concern that programs are not treating biology as a scientific process, nor addressing social and technological…

Provides a student worksheet and set-up instructions for a science experiment to demonstrate the concept of density. Students are asked to explain the phenomenon in which a liquid of lower density placed in the bottom of two vertical flasks flows up to replace the liquid of higher density in the upper flask. (MDH)

Discusses physical disabilities and laws for "mainstreaming." Presents a checklist for classroom safety for the physically disabled. (PR)

Presents an activity to help students understand the precepts of the Hardy-Weinberg principle and simultaneously permit observation of a model of evolution through natural selection in a nonthreatening setting. (PR)

Presents an activity that demonstrates the physical and chemical changes that occur during the operation of a wet cell battery as it produces an electrical current. Provides instructions for the lesson. (MDH)

Presents a simple activity designed to allow students to experimentally verify Kepler's second law, sometimes called the law of equal areas. It states that areas swept out by a planet as it orbits the Sun are equal for equal time intervals. (PR)

Describes a class activity where individual students ask the teacher "yes and no" questions to find the amount of force the bicep uses to lift a 1 kilogram mass. (PR)

Describes a partnership program between a Florida high school and an air force base. Volunteers from the air force base served as mentors for at-risk students. (PR)

Describes scientific and technical accomplishments of Africans in developing the calendar, surgery, and gynecology and of Native Americans in developing astronomy, architecture, and agriculture. (Contains 93 references) (PR)

Describes the following uses for a video camera in the science classroom: video presentations, microscope work, taping and/or monitoring experiments, analyzing everyday phenomena, lesson enhancement, field trip alternative, and classroom management. (PR)

Discusses a series of interviews with students at the end of their first year of studying science in secondary schools. Compares and contrasts students' perceptions of reality with their expectations. (DDR)

Discusses the mathematics and science underlying Eratosthenes' measurement of the circumference of Earth in about 200 B.C. and provides a lesson plan so that small groups of high school students can duplicate the measurements. Equipment needed and related Web sites are listed, and a model chart to record measurements is provided. (PEN)

Explores the changing nature of upper secondary school science subject enrollments over two decades. Discusses the fact that enrollments in chemistry, physics, and biology increased up until 1991 and declined from 1992-1995. (DDR)

Discusses high school science and technology education and requirements for the job market and describes SciTeKS (Science Technology, Knowledge, and Skills), a standards-based, multimedia, modular high school program in chemistry, biology and the earth sciences designed by the American Chemical Society to introduce students to science technology…

Good science education depends on solid content and active learning. Effective teaching in all the physical sciences should have a similar focus on important concepts and effective learning experiences. Students of all ages benefit from experiential learning. Inquiry, which combines hands-on and minds-on learning, engages students in a process…