Three articles discuss "The Bell Curve" and its theory that IQ is an inherited trait rather than an acquired skill. Topics include implications for educational designers, IQ tests, cognitive architecture, learning mechanisms, and abstract knowledge structures. (LRW)

Argues that role-playing activities can be a powerful tool in mathematics and science education, particularly in the new sciences of complexity (i.e., the study of complex systems). Two role-playing activities are described, each designed to help students develop better intuitions on how complex phenomena can arise from simple interactions, and…

Presents a longitudinal study comparing problem-solving performance for medical students trained using two different approaches to medical education. The first is traditional medical education involving lectures supplemented by laboratory exercises. The second approach is problem-based learning (PBL), where students learn basic concepts in small…

Describes the refinement of a conception in the domain of linear functions. Examples show how students refine their use of the x-intercept in equations of the form "y=mx+b" by narrowing problem contexts, making connections between conceptions, using a mathematical procedure, and refining verbal descriptions. Resources that teachers can draw on to…

Includes three articles that discuss activity theory, based on "Context and Consciousness." Topics include human-computer interaction; computer interfaces; hierarchical structuring; mediation; contradictions and development; failure analysis; and designing educational technology. (LRW)

This special issue includes four articles that address issues concerning conceptual change. Topics include analogical reasoning and a case study of Johannes Kepler; conceptual change and wine expertise; the role of extreme case reasoning in instruction for conceptual change; and dynamic science assessment: a new approach for investigating…

In a year-long, school-based teacher education project, primary school teachers were given workshop- and classroom-based support, including sustained mentoring, as they appropriated a generative heuristic for teaching technology and science. Dialogs show how a mentor supported one teacher as she aligned her former instructionist teaching methods…

Explores student ability to differentiate and make mappings between quantities in different domains before and after a relevant curricular experience. Contends that conceptual bootstrapping involves a multistepped mapping process that is facilitated through classroom dialog, problem solving, and instruction. (Author/DKM)

Socially assisted group learning was evaluated in terms of its effectiveness in promoting fourth-grade students' solution of complex two-step word problems. Suggests that those in the socially assisted learning condition used labeled representations in problem solving more effectively and deduced implied information earlier and more often than…

Analyzes ways in which an experienced physics teacher uses questioning to guide student thinking during a benchmark discussion on measurement. Proposes that teachers may shift toward more reflective discourse by asking questions that help students clarify their meanings, consider various points of view, and monitor their own thinking. (Author/DKM)

Explores the influence of offering different instructions to undergraduate students prior to their learning an expository text on evolutionary biology. Participants were asked to either explain, summarize, or listen to another's explanation. Overall, explainers outperformed summarizers. Moreover, the teach-through-explanation condition had the…

Generic teleological mechanisms (GTMs) are a class of strategic concepts especially useful in adaptive design. GTMs are abstract functional and causal patterns that lead to adaptation strategies for innovative design. Adopts a task-directed approach to learning, and describes a model-based method for learning GTMs from design methods. (Author/DKM)

In response to existing educational systems producing individuals who fail to have sound working knowledge bases, this article examines uses of technology to improve instructional methods. Reviews results of a case study that use problem-based learning as a collaborative learning method for medical undergraduates, and presents six principles of…