Preferences are influenced by the presence or absence of salient choice options, known as reference points. This behavioral tendency is traditionally attributed to the loss aversion and diminishing sensitivity assumptions of prospect theory. In contrast, some psychological research suggests that reference dependence is caused by attentional biases…

Presents laboratory procedures, classroom materials/activities, and demonstrations, including: vapor pressure of liquid mixtures and Raoult's law; preparation/analysis of transition metal complexes of ethylammonium chloride; atomic structure display using a ZX81 (includes complete program listing); "pop-up" models of molecules and ions;…

Advocates an increase in the use of simulation methods in science education. (JR)

Presents a model, organizational procedures and evaluative findings of a science curriculum development program. Inservice teachers co-operatively developed modular science courses for underachievers, lists of science skills and attitudes, and materials for environmental science, physical science and biological science courses. (ML)

Describes equipment for recording human breathing (stethographs, tambors, spirometers), construction of pooters (pipettes), field exercise on examining epiphyte distribution on tree bark, and vertebrate skeleton models for teaching locomotion. Includes abstract of student research project examining pH on Colpoda encystment and reviews of…

Science, technology, and society (STS) is currently underdeveloped in British secondary education. Indicates that, while integrated curricula present the best opportunity for future STS curriculum design, such models as "product,""inquiry," and "relevance" remain unexplored. These models are considered with…

A few kilometers from the shores of Palm Beach County, Florida, is the Gulf Stream current--a remarkable "river" within an ocean. The current's journey across the Atlantic Ocean connects southeast Florida and southwest Great Britain as it streams steadily north at speeds of 97 km a day; moving 100 times as much water as all the rivers on…

Offers perspectives on the need for secondary science curriculum reform. Discusses curriculum issues in terms of four stages which include: the nature of science; principles of curriculum design; pupils needs and entitlements; and practical proposals for exploring curriculum models. (ML)

Describes techniques in LOGO, which are applicable to A-level and above. The techniques use a dynamic modeling approach, which considers system behavior in terms of state transitions over successive short intervals. Advantages and disadvantages of using LOGO are noted. (JN)

An elementary physical model of cone receptor cells is explained and applied to complexities of human color vision. One-, two-, and three-receptor systems are considered, with the later shown to be the best model for the human eye. Color blindness is also discussed. (DH)

Describes an operative model of secondary science curriculum development (the Secondary Science Curriculum Review-SSCR). Explanations of the levels of organization, styles of management, and role functions are stated. Characteristic elements include teacher participation, group autonomy, and shared decision making. Interaction and consultation…

Describes a self-instructional game which simulates scientific research in bacterial genetics. (CS)

Describes the construction of an apparatus that can be used as a quick and easy model of the passage of a longitudinal wave in a steel or aluminum rod. Employs expandable steel springs. (DDR)

Discusses the role and types of evaluation for secondary science curriculum studies. Rationales for product and process evaluation and models for implementation are reviewed. Teacher involvement in curriculum development is advocated. (ML)

Describes two different approaches to joint teaching by a health educator and a physician. Provides the script for a dual monologue, which is the basis for the first teaching activity. The second example differentiates between traditional, transitional, and modern models of health educations and the role physicians play in each. (TW)