Discusses insufficiency of the linear method and some informal practices (or heuristics) used by expositors in trying to alleviate it. Uses the Cantor-Bernstein theorem to illustrate the linear proof, structuring, and the structure proof. Argues that the informal practices considered be consistently applied to the presentation of pivots and…

Human expert problem-solving in science is defined and used to account for scientific discovery. These ideas are used to describe BACON.5, a machine expert problem solver that discovers scientific laws using data-driver heuristics and "expectations" such as symmetry. Implications of BACON.5 type research for traditional science education…

Views information as residual or catalytic form of energy which regulates other forms of energy in natural and artificial systems. Parallel human information processing (production systems, algorithms, heuristics) and information measurement are discussed. Suggestions for future research in area of parallel information processing include a matrix…

Considers three powerful techniques--heuristics, context trees, and search via backward chaining--that a knowledge engineer might employ to develop an expert system to automate performance engineering, i.e., the branch of instructional technology that focuses on the problems of business and industry. (MBR)

This paper reports on the mathematical modelling of four classes of 4th-grade children as they worked on a modelling problem involving the selection of an Australian swimming team for the 2004 Olympics. The problem was implemented during the second year of the children's participation in a 3-year longitudinal program of modelling experiences…

This paper responds to Martin Jay's imaginative proposal to "map...scopic regimes, or visual cultures." The intent in the paper was to demonstrate how such a reflexive "social cartography," or heuristic device might serve to identify and visualize difference within and between disputatious intellectual communities in a way that…

A heuristic example is presented in which parsimony as typically operationalized in indices of fit may not be desirable. In a simplex model of longitudinal data, the failure to include correlated uniquenesses relating to the same indicators on different occasions will typically lead to systematically inflated estimates of stability. (SLD)

Examines a virtual work team to determine the domains of the team and the effect the virtual work environment had on the domains. Discusses results of a literature review and a phenomenological heuristic case study, including the effects of post-modern philosophy and postindustrial society on changes in the marketplace. (Contains 79 references.)…

Describes how elementary linear algebra can be taught successfully while introducing students to the concept and practice of mathematical proof. Suggests exploring the concept of solvability of linear systems first via the row echelon form (REF). (Author/KHR)

Investigates how college students in an upper-division professional writing course respond to user input at the draft stage of writing computer documentation. Finds that writers perceive user input in different ways and suggests that draft-stage user testing produces better documentation. (PRA)

Presents the role of human resource development practitioners as organizational researchers. Describes a model for validating instruments, constructs, and strategies, based on communication theory. Cites common errors and issues in the validation of measurement and demonstrates uses of the heuristic validation model. (SK)

The paper critically appraises the concept-learning and developmental perspectives in science education to show that Pascual-Leone's Theory of Constructive Operators leads to a progressive problem-shift between Piaget's epistemic subject and Pascual-Leone's metasubject. (SM)

Substruction is the illustration of the infrastructure of a research study--the foundational elements, their relationships, and outcome. It helps researchers increase their knowledge of theoretical, empirical, and descriptive links between a study's conceptual and operational components. (SK)

Proposes a probability heuristic model for syllogistic reasoning and confirms the rationality of this heuristic by an analysis of the probabilistic validity of syllogistic reasoning that treats logical inference as a limiting case of probabilistic inference. Meta-analysis and two experiments involving 40 adult participants and using generalized…

Assessment of learning organizations is not a scientific but a political endeavor, better served by heuristic measures. These measures assess conditions in which there is high probability that learning is occurring, enable participants to assess the learning climate, and make the learning climate a focus of inquiry. (SK)