Students (N=387) in grades 8, 10, 12, and college were administered eight reasoning items to test hypothesis that the basic logic utilized in individuals in scientific hypothesis testing is the biconditional and that the biconditional is a precondition for development of formal operations. Results and implications for science instruction are…

Provides rationale for and examples of a game (Mastermind) which fosters the development of a systematic approach to problem solving. Includes a brief summary of an experiment with 50 high school students indicating value of the game. (JN)

Contains 10 articles discussing various issues relating to suicide. Discusses difficulties in defining suicide and a psychological theory of suicide. Reports on suicide among the gifted and discusses cognitive processes and styles relating to suicide. Discusses the psychological autopsy, psychotherapy with suicidal patients, and care of the…

The educational implications of Piaget's concept of intelligence provide a framework for the application of theory to educational practice. The uniqueness of individual learning is compared to stage-based teaching. Social interaction is viewed as one of the major forces in cognitive development. (JN)

Points to signals that people in the West have entered into an environment hostile to rational thought and shows how the major characteristics of United States media environments contribute to this hostility. Suggests ways that teachers can assure the conservation of rational thought and restore the balance between reason and experience. (GT)

Finds that various aspects of formal reasoning correlated significantly with mean t-unit lengths written by high school freshman boys, but not by freshman girls. Suggests that the reasoning tasks may have been biased against females. (RL)

Discusses use of two central forms of argument, analogy and inference to the best explanation, in teaching college science. It is argued that science makes sense if the underlying reasoning makes sense, and this must be explicitly addressed in instruction. Therefore, forms of argument that link evidence to hypotheses or theories, and criteria for…

Discusses the need for children to become fluent in logical argument and systems dynamics. Examines the "create an embedded environment and support classroom teachers with visiting experts" strategy in music and technology education. Describes the distinction between meaningless activities with computers and computer literacy. (AEF)

A model for teaching proof writing to college mathematics students is presented. The model has six phases: (1) open (understanding the theorem by reading it, listing, and writing it out); (2) brainstorm; (3) instantiate (perception of the chain of inferences linking hypothesis to conclusion); (4) convince; (5) reflect; and (6) extend. Strategies…

Defines creativity, recognizing both developmental continuities and discontinuities. Also distinguishes between creative interpretation and cognitive restructuring, emphasizing transformational abilities, and between perceptual and discretionary cognitive processes. (DR)

Three studies used interspecies adoption stories to examine children's understanding of the role of birth in determining animal properties and species identity. Found that most 4- to 7-year olds could reliably judge that babies would be of the same species as birth parents, but were unable to attribute properties of adoptive parents. (Author/KB)

Using young women with eating disorders as examples, this article examines how misdirected critical thinking can become very non-productive. The negative side of the characteristics of critical thinkers (precise, reflective, analytical, and reasonable) are described in these adolescents, and key steps to addressing misdirected thinking are…

Analyzed is the role of formal logic in the development and investigation of science education. Investigated are the use of logical relations in the learning of abstract concepts and the development of efficient cognitive processes in the context of science curricula. (Author/YP)

Examines comprehension of sentences with multiple negations among 71 monolingual Anglo and bilingual Hispanic undergraduate science and engineering majors. Finds that both groups misused rules of logic and natural discourse; similar groups benefited from training to eliminate inappropriate reasoning strategies, but only Anglos retained the…

Because most schools do not have courses in formal logic, teachers must teach this topic as it comes up naturally through class discussions in algebra, geometry, or general mathematics. This article shows how teachers can capitalize on students' ways of thinking to lead them to a greater understanding of logical relationships. (PK)