Investigates the way in which students apply the ecological concept of interdependence of species to the issue of preservation of species. Interviews with 12-year-old children (N=63) and 16-year-old children (N=60) provide the data for this study. Contains 27 references. (DDR)

Examines research in folkbiology (commonsense understandings of plants and animals) to argue that several lines of comparative research are needed to understand the acquisition of folkbiology in particular and conceptual development in general. Asserts that comparisons are needed between children and adults within a given society, between adult…

Focuses on how students' epistemological beliefs are related to conceptual change learning in science. Addresses: taking students' epistemological beliefs into account; findings of secondary school students' epistemological beliefs about science; and instructional strategies to promote students' mature epistemological beliefs. Focuses specifically…

Thirty-seven students who were blind or had low vision listed as many examples of 10 categories as they could and the prototype order of examples was scored. No differences between blind or low-vision students were found, but categories with which the students had a greater degree of direct sensory experience produced more examples and higher…

Examines one preschooler's conversation with author to determine what concepts educators consider "difficult" for this age group. Finds that concepts such as "infinity" and "negative numbers," typically avoided by primary educators, were brought into view in the task-based conversations. Argues that individual…

Explores the integrative nature of problem-based curricula and describes a systematic process for content review in a problem-based curriculum. Utilizes consultation among students, faculty, and the clinical community. Delineates the advantages of this process. (DDR)

Uses a video presentation of six situations relating to the evaporation and boiling of liquids and the escape of dissolved gases from solution and investigates graduate scientists' understanding of the concepts of boiling and evaporation. (Author/YDS)

Interviews 9th and 10th grade students (n=13) who studied an ecology unit and analyzed tape-recorded data for changes in organization of knowledge, represented by ideational networks and the development of higher cognitive operations. Provides insights into how students developed knowledge schemata, ideational networks, and the capacity to express…

This paper describes a proportional reasoning problem set within a real-life context and a complete analysis of one small group discussion of this problem over the course of a 90-minute block. The seventh-grade students' discourse is described to provide insights into typical mathematical interpretations of this problem, as well as some…

This article reports on the value of using student-generated analogies with undergraduate science students as a strategy for promoting conceptual understanding. A quantitative study was undertaken involving students in four sections of an introductory chemistry course for prospective science majors attending a four year college in British…

The rapid advance of distance learning and networking technology has enabled universities and corporations to reach out and educate students across time and space barriers. Although this technology enables structured collaborative learning activities, online groups often do not enjoy the same benefits as face-to-face learners, and their…

This paper is focused on primary trainee teachers' conceptualization of the vision process and image formation in a plane mirror. The study involved 55 non-specialist, undergraduate trainee primary teachers on a 4-year programme of initial teacher training. The process incorporated tracking trainees' ideas during university-taught sessions through…

With the current focus on constructivist perspectives, science demonstrations have fallen out of favor in some circles. Demonstrations are easy to do and offer many benefits and unique opportunities in the constructivist classroom. With careful use, demonstrations can be powerful teaching tools. A wonderful quality of a demonstration (or a series…

Physicist James Trefil once describes the universe as "The Spongy Universe," comparing large-scale cosmic structures to the structure of a sponge. The NASA Genesis education module "Cosmic Chemistry: Cosmogony" features the "Spongy Universe" activity in which pairs of students observe a household sponge, making…

The field of industrial relations, to which labour studies and labour education are closely linked both historically and institutionally, is an interdisciplinary field and, as such, has never securely claimed a single theoretical foundation. This article draws attention to a theoretical framework that may be useful as a way of promoting discussion…