Discusses the use of self-paced units. Development suggestions include determining the form of the units, including goals, responsibilities, and definitions of terms; keeping them short; including a variety of activities; and requiring that all lessons be completed at school. Contains sample units on climatology and meteorology, the sun, and…

Includes materials list and assembly instructions for a heated, shaking waterbath. (MKR)

Traces the history of the Earth over four billion years, and shows how climate has had an important role to play in the evolution of humans. Posits that the world's rapidly growing human population and its increasing use of energy is the cause of present-day changes in the concentrations of greenhouse gases in the atmosphere. (Author/JRH)

Discusses three aspects of Australian science education: the curriculum for teaching school science; the structure of science in schooling; and the threat of isolation for school science education, in the context of international developments and directions over the last thirty years. (Author/JRH)

Discusses assessment in the context of a national curriculum and issues that have arisen in England as a result of the introduction of a national curriculum about seven years ago. Outlines the public view, the official view, and teachers' views about assessment that were obtained using questionnaires. (JRH)

Presents suggestions for the implementation of constructivist teaching-learning strategies. Discusses the following topics: teacher's role; classroom management; planning; pedagogic skills, including negotiation and group work; and assessment. (JRH)

Outlines the first phase of a teacher inservice program that focused on familiarizing teachers with the New Zealand science curriculum document, Science in the New Zealand Curriculum. Reports that the teachers needed much personal support to interpret the document and to plan units using the document. Discusses key issues that emerged during the…

Describes new technologies that have greatly improved the extraction efficiency of gold ore, including: altering plant layout to promote efficiency, engaging Filiblast forced oxidation and bioxidation systems, and updating the electrowinning procedure at the gold recovery stage. (JRH)

Describes a computer program that can model the equilibrium processes in the production of ammonia from hydrogen and nitrogen, sulfur trioxide from sulfur dioxide and oxygen, and the nitrogen dioxide-dinitrogen tetroxide equilibrium. Provides information about downloading the program ChemEquilibrium from the World Wide Web. (JRH)

Presents the concept of using posters that deliver their message in a cartoon format and language aimed at engaging the attention of secondary school students to promote awareness of the relevance of physics and generate enthusiasm for physics among students. Provides information for ordering the posters. (JRH)

Describes the construction and operation of an apparatus used to study the optical properties of solids using reflection. (JRH)

Describes an experiment that uses the Tain Electronics TCS2 interface to investigate the relationship between force, mass, and acceleration. Discusses the following topics: assembling the system, forces in the system, software, and data analysis. (JRH)

Describes the function of the various parts of the microscope and their integration in the formation of an optical image. Presents a procedure for setting up a microscope to obtain maximum resolution and contrast for each objective lens at all magnifications. (JRH)

Presents a segment of the Geoscience Education booklet, Climate Change, that contains information and activities that enable students to gain a better appreciation of the possible effects human activity has on the Earth's climate. Describes the Terrace Temperatures activity that leads students through an investigation using foraminifera data to…

Uses a problem-solving task to compare the performance of school students, university students, and research scientists on a laboratory-based science investigation. Reports limitations in the work of the school students and provides insights into the development and nature of expertise in investigation skills. Presents recommendations for…