Compared transactions in junior/senior high biology classes and indentified relationships between classroom conditions, lesson format, and instructional activities. Found instruction characterized by inquiry-oriented, laboratory-based learning led and guided by the teacher, with only medium dependence on the textbook. Also found the Structured…

Relationships which exist between self-perception in science and cognitive development were explored under two quantitatively different teaching strategies: the use or nonuse of directions, praise, and rejection. A less directive teaching strategy appears to provide a more positive environment for developing an independent self-perception in…

Examined effects of operational levels of ninth-grade (N=16) and college (N=40) students on causal explanations they recalled after instruction. Results indicate concrete/formal students recalled explanations requiring chaining of two implication statements while formal subjects outperformed concrete subjects in reconstruction of complex…

Study aids have been developed in a format allowing students to assimilate partial answers slowly, without consulting the whole answer. Discusses rationale and advantages of using the aids and provides three examples demonstrating logical thinking required to solve short-answer problem and use in multistep mechanistic or synthetic problems.…

Discusses the basic issue between biology and the religious right, focusing on the strategies creationists use. Proposes formation of a symposium on the relationship between science, religious beliefs, and politics, outlining purposes of such a symposium and questions which might be addressed. (JN)

Suggests discussion questions, demonstrations, and activities related to a Public Broadcasting Service documentary ("To Hear"). The basic theme of the program is that people don't realize the dangers of excessive noise because it is pervasive and invisible. (Author/JN)

Coping with the high cost of teaching chemistry, content of organic chemistry, instructional strategies, and approaches in dealing with the changing student population (urban blacks/hispanics, handicapped, and other nontraditional students) are among the topics discussed in 19 papers presented at the Seventh Biennial Conference on Chemical…

Describes a cooperative venture between a college faculty member and elementary school students/teachers. Each year the faculty member presents two basic physics assembly programs at the school (one for upper and one for lower grades). Includes examples of assembly activities and summary of 1977-1982 teachers' evaluations of the program. (JN)

Examines creationism/evolution debate in context of philosophy using ontological models in which reality is assigned to one or both natural or transnatural (supernatural) realms. The six models (theistic-teleological dualism; deistic-mechanistic dualism; fundamentalist creationism; atheistic monism; theistic monism; mechanistic monism) deal with…

Points out that the most basic of creationist attacks of geology, their claim that uniformitarianism is an unreliable basis for interpreting the past, fail because the uniformitarianism they describe is no longer a part of geology. Indicates that modern uniformitarianism is merely the philosophical principle of simplicity. (Author/JN)

Thomas G. Barnes, geologist/creationist, argues that the geomagnetic field was created by unknown processes when earth was created and has been decaying (irreversibly/exponentially) with a half-life of about 1,400 years since then. Shows that Barnes' proposition is wrong and explains why the earth's age cannot be determined from magnetic-field…

Discusses four problems facing gifted students in elementary science classrooms. Suggests development of teacher-made science packets to resolve these and other problems. A sample lesson on animal classification for grade three is provided. (JN)

Compared effectiveness of discovery and expository instructional strategies on science knowledge and attitudes of fifth-grade Egyptian students (N=276). Although there were no sex differences, students taught by discovery scored higher in achievement (recall and application) and attitudes than those taught by the expository method. (JN)

A two-part unit for second-grade students was developed to make children aware of the kinds of energy, problems connected with each energy type, and to introduce the decision-making process. Rationale for the unit and individual unit lessons and activities are discussed. (Author/JN)

Discusses determination of elliptical path of a satellite caught into orbit by the sun or earth; using microcomputer as signal generator (includes program listing); collision process; simple hysteresis loop using double beam CRO; method of demonstrating parallelogram of forces; measuring radius of electron beam curvature; and half-life of thorium…