Discussed are various models proposed for the Moebius strip. Included are a discussion of a smooth flat model and two smooth flat algebraic models, some results concerning the shortest Moebius strip, the Moebius strip of least elastic energy, and some observations on real-world Moebius strips. (KR)

This article argues for the importance of studying word-recognition strategies in the assessment of dyslexia. The dual-route model is defended despite attacks from supporters of computational models of modern connectionism. A computer-based diagnostic test battery is described and illustrated via 2 case studies of 15-year-old dyslexic boys in…

This paper provides an overview of collaborative consultation, a service delivery model emphasizing mediated joint problem-solving efforts between individuals from different fields. Of special emphasis is the role of teachers of mainstreamed hearing-impaired students in providing ongoing support to regular classroom teachers, speech-language…

Describes the use of oceanographers' models for introducing students to the concept of mathematical modeling. Outlines a lesson showing the interrelationship of science and mathematics. (RT)

Describes a study of 120 second-grade and fourth-grade students that explored a self-regulatory approach to problem solving by providing pairs of students with the IDEA model to identify, define, explore, and assess progress in solving computer problems. The use of student journals, classroom debriefings, and observations are discussed. (LRW)

Confirmatory factor analysis was used to test first- and second-order factor models on cognitive abilities and their invariance across samples of 234 male and 225 female secondary school students. Factor models suggest that males and females may use different problem-solving strategies for spatial analogies, matrices, and numerical problems. (SLD)

Outdoor leaders with sound judgment can gather many specific experiences, induce them into a collection of general concepts, store these as memory maps in the mind, later recall the general concepts as needed, and deduce a specific prediction from them. Proposes that evaluative reflection after a judgment is made is the component missing from most…

The intuitive simplicity of probability can be deceiving. Described is a dialogue that presents arguments for conflicting solutions to a seemingly simple problem determining the probability of having two boys in a two-child family knowing that one child is a boy. Solutions contain multiple arguments and representations. (MDH)

Presents an approach to the concept of absolute value that alleviates students' problems with the traditional definition and the use of logical connectives in solving related problems. Uses a model that maps numbers from a horizontal number line to a vertical ray originating from the origin. Provides examples solving absolute value equations and…

Discusses the equation and proportion methods for teaching how to solve percent problems. Supplements the teaching of each method by introducing a representational model that enhances understanding when solving percent problems. (MDH)

Reacts to Ohlsson, Ernst, and Rees' paper by initially discussing the costs of methodology that utilizes artificial intelligence (AI) to model cognitive processes. Raises three concerns with the paper: insufficient clarification of the meaning of conceptual versus procedural understanding of base-10 subtraction; realism of the learning model; and…

A study of a team-building workshop demonstrates that all four levels of Donald Kirkpatrick's classic evaluation model could be applied to soft skills training. Results show that such training can be tied to productivity measures and evaluated as a return on investment. (JOW)

Included are probability models for various strategies that contestants on the television game show, "Let's-Make-a-Deal," might use when given the option to stick with their original choice of three unopened doors or switch to the unopened door after one of the other two doors has been opened. (JJK)

Presents two cognitive models that illustrate the commonalities between reading for meaning and solving mathematical problems with meaning. Discusses the importance of number sense in the prior knowledge component of the solving with meaning model and the implications of the models in teaching mathematics. (MDH)

One hundred French children in grade five participated in an experiment to determine how the problem frame facilitates comprehension of a problem solution text. Results demonstrate the positive role of frames in macrostructure construction and support the model of T. A. van Dijk and W. Kintsch (1983). (SLD)