Discusses class activities that create artificial environments to facilitate students' learning about the cultural life of the country whose language they are studying, in this case, Spanish. Such activities include taking pictures of fictional wedding parties, using current Mexican newspapers to shop for the bride and groom, and attendance at the…

Some alternative criteria for item selection in adaptive testing are proposed that take into account uncertainty in the ability estimates. A simulation study shows that the likelihood weighted information criterion is a good alternative to the maximum information criterion. Another good alternative uses a Bayesian expected a posteriori estimator.…

Explores the use of simulations as a teaching method for gifted students. Identifies positive effects of simulations and distinguishes different types. Notes disadvantages related to time, money, and experience as are unique features of the teacher's role in this approach to instruction. Lists guidelines for choosing a model and deciding on a…

Presents a model of high-dimensional context space, the Hyperspace Analogue to Language (HAL), with a series of simulations modelling human empirical results. Proposes that HAL's context space can be used to provide a basic categorization of semantic and grammatical concepts; model certain aspects of morphological ambiguity in verbs; and provide…

Discusses the use of multimedia computer-based training to effectively teach mechanical skills. Gives an example of teaching shaft alignment tasks that combines three-dimensional animations, simulations, and user interactions to allow the trainee to practice recognition and manipulation skills. (Author/LRW)

An item selection procedure for computerized adaptive testing based on average global information is proposed. Results from simulation studies comparing the approach with the usual maximum item information item selection indicate that the new method leads to improvement in terms of bias and mean squared error reduction under many circumstances.…

Presents a model to explain the behavior of oscillatory phenomena found in the soda bottle oscillator. Describes recording the oscillations, and the design of the model based on the qualitative explanation of the oscillations. Illustrates a variety of physiochemical concepts including far-from-equilibrium oscillations, feedback, solubility and…

Discovery Education is based on the writings of Henry David Thoreau, an early champion of experiential learning. After 2 months of preparation, 10th-grade students spent 4 days in the wilderness reenacting a piece of history, such as the Lewis and Clark Expedition. The interdisciplinary approach always included journal-writing. Students gained…

Introduces the Enviroland computer program which features lab simulations of theoretical calculations for quantitative analysis and environmental chemistry, and fate and transport models. Uses the program to demonstrate the nature of linear and nonlinear equations. (Author/YDS)

Describes item response and information functions for the Zinnes and Griggs paired comparison item response theory (IRT) model (1974) and presents procedures for estimating stimulus and person parameters. Monte Carlo simulations show that at least 400 ratings are required to obtain reasonably accurate estimates of the stimulus parameters and their…

Presents a map-projection activity that combines mathematics and geography through investigating the proportion of land and water that covers the earth. Focuses on helping students become familiar with characteristics of different projections or representations of the world while estimating and graphing and encouraging them to investigate the…

Describes interest in the behavior of random processes with positive feedback. Explains that simulation of the law of large numbers with increasing amounts of feedback makes instruction of random processes with positive feedback possible for undergraduate students. (RLH)

Describes the "doing nothing" assignment that can be used to teach about stigma. Explains that the assignment is a simulation offering a theoretical background as well as a description of the exercise. Explores the advantages of the stigma simulation and addresses how to assess students. Includes references. (CMK)

Two studies assessed school-aged children's reactivity to parental conflict simulations and adolescents' reactions to actual marital conflict. Three profiles of reactions were identified: secure children, insecure-preoccupied children, and insecure- dismissing children. Findings in both studies indicated that preoccupied children evidenced the…

Reports on the findings of a study designed to develop three-dimensional virtual reality technology (VRT) learning programs for middle school students and evaluate the program's educational value. Focuses on the topic of structure and function of the eye. Concludes that VRT simulations allow comfortable interaction with computers and increase the…