Presents a laboratory activity for use during the first or second week of school that engages students in the basic principles of the scientific method. (PR)

Explains how Darwin's observations and experiments can be used to show the true nature of science and good scientific methods. (PR)

Discusses the principles of sustainability and how it relates to human impact on the environment. Describes modern society as a paragon of waste in contrast to natural ecosystems. (PR)

Describes experiments by Thomas A. Knight on geotropism. These experiments took place about 200 years ago and used a centrifuge. (PR)

Students experience the distinction between observable fact and scientific theory by taking a critical look at how spaghetti can be sucked up into the mouth. A demonstration shows that air is needed to suck up the spaghetti but that the scientific explanation is not as simple. (MDH)

Presents an activity in which students model the processes of meiosis, fertilization, development, and birth using model creatures called reebops. Students breed reebops to analyze chromosome combinations. Makes recommendations for activity utilization and identifies the strengths of the activity. (MDH)

Discusses the necessity of effective AIDS/HIV education in the secondary schools, its inclusion in the biology curriculum, and methods of educating teachers concerning the topic. Provides recent data related to AIDS and proposes that science teacher stress abstinence and behavior modification as possible solutions. (MDH)

Describes an activity in which students look at photographs of different cats to determine the genotypes of the various characteristics observed. Provides a student worksheet. (MDH)

Ethnobotany is the scientific investigation of plant use by indigenous cultures for food, medicine, pesticides, and other purposes. Discusses the significance of ethnobotany and provides resources and laboratory activities suitable for use in biology and botany courses at the high school and college levels. (MDH)

Describes how spreadsheets can be used for helping students learn about direct current electrical circuits. (PR)

Explains how the "three D's" of ecology; diatoms, density, and diversity; can be used to generate student enthusiasm and spur investigations that can be conducted during student's own time. (PR)

Modeling is important in science and in science education. Computer-based modeling opens up new possibilities for learning science, particularly now that appropriate software is available. This article describes high school students' use of Model Builder software in high school classrooms. (PR)

Describes a high school pilot program to meet California's science curriculum guidelines to adopt a Scope, Sequence and Coordination (SS&C) approach. The SS&C curriculum offers four science subjects for each year of high school. Concrete, phenomenological, and descriptive topics are covered during the early years and theoretical and…

Introduces students to biological classification by having them classify music. (PR)

Indicates the difficulties for teacher educators in developing the content of courses because of changing conditions. Questions the context of the Concept Presentation assignment and asks how to progress in understanding the reflective processes involved in collaborative efforts inquiring into and improving professional practice. (Contains 30…