Presents the epistemology of scientific concepts from a schematic modeling perspective. Discusses students' initial cognitive states based on the level of commensurability between students' own concepts and their scientific counterparts. Contains 87 references. (DDR)

Presents a case for using wood frogs to study biology with students. Offers tips on where to find the eggs, how to care for them, what to expect as they hatch, and how to engage students in a study of their stages of development. (DDR)

This interview with Walt Crawford, a senior analyst for the Research Libraries Group, discusses his objections to the term and concept "digital library," the persistence of print versus the prospect of all-digital libraries, the economic and ecological disadvantages of all-digital libraries, expanding traditional library and university…

Describes a procedure based on the assumption that during the rated lifetime of a light bulb roughly half of the radius of the filament evaporates. Explains how the filament's operating temperature can be deduced. (DDR)

Explores the problems primary teachers encounter in science and technology and the extent to which these problems are associated with lack of confidence or background knowledge. Findings indicate that there are some ideas which primary teachers come quickly to understand and others that require more extensive professional development. (DDR)

Argues that the common assumption about the lack of intermediate forms in evolutionary history is inaccurate and misleading. Points out that there are many transitional forms, although special creationists refuse to recognize them as such. (DDR)

Microanalyzes graph use in lectures drawn from artifacts compiled from videotaping all lectures and seminars in a 13-week ecology course. Focuses on both the text and the gesture-related references made in the reading of a graph in an ecology lecture. Contains 36 references. (DDR)

Presents six common themes that characterize scholarship about race, class, gender, and sexuality. These themes are contextual and socially constructed, and deal with systems of power relationships. They stress the social structural (macro) and social psychological (micro) nature of the issues and their simultaneous expression, as well as the…

Studied the construction of the personal stereotypes of adult and adulthood roles and the influence of gender, maternal employment, and employment goals of 237 adolescents. Exploratory factor analysis indicated a four-factor structure in attitudes toward family and career roles, ideology of fairness, social status, and rational characteristics,…

Explores the notion that some social interactions are more conducive to the construction of knowledge than others. Describes the use of argumentation as a learning tool during play by analyzing transcripts of the interactions of four-and-a-half year olds. Derives implications for early childhood education from these examples and from a theoretical…

Explores the development of children's conception of a substance and reports the findings in relation to children's understanding of boiling water and particle ideas. Argues that boiling water should have a broad significance in the curriculum. Contains 23 references. (DDR)

Uses an instrument designed to identify misconceptions in biology to reveal that novice biology teachers hold a number of conceptual errors which are also prevalent among secondary science students. Contains 44 references. (DDR)

Examines pre-college students' understanding of the nature of science and tracks those beliefs over the course of an academic year. Studies students' conceptions of the nature of science using a model developed for use in this study. (Contains 24 references.) (Author/YDS)

Considers the question of whether art therapy is an idea or a profession. Presents a brief overview of professions, the benefits and consequences of professions, challenges facing the profession of art therapy, and ideas for the future. Discusses service learning as a way of helping students become concerned about making a difference. (Contains 20…

Illustrates how a novel problem of chemical equilibrium based on a closely related sequence of items can facilitate students' conceptual understanding. Students were presented with a chemical reaction in equilibrium to which a reactant was added as an external effect. Three studies were conducted to assess alternative conceptions. (Author/SAH)