A virtual reality application for undergraduate chemical kinetics and reactor design education, Vicher (Virtual Chemical Reaction Model) was originally designed to simulate a portion of a modern chemical plant. Vicher now consists of two programs: Vicher I that models catalyst deactivation and Vicher II that models nonisothermal effects in…

The Rasch item fit approach for detecting multidimensionality in response data is compared with principal component analysis without rotation using simulated data. Results indicate that both approaches work in a variety of multidimensional data structures, but the Rasch item fit is better under some circumstances, as discussed. (SLD)

Explains a proposed block of instruction that would give students in industrial engineering, operations research, systems engineering, and applied mathematics the basic understanding required to begin more advanced courses in simulation theory or applications. (DDR)

Provides ways for students to demonstrate their understanding of scientific concepts and skills. Describes a mini-unit around the cold in which students can relate humans to viruses. Includes activities and a modified simulation that provides questions to guide students. Discusses ways that allows students to apply prior knowledge, take ownership…

Describes a simulation called, "Classroom City," used by elementary students to learn about communities. Focuses on the students' own simulated city named Bat Town, U.S.A. Discusses the project in detail. Describes the activities children participated in and the roles they assumed during the simulation. (CMK)

Describes one instructor's approach to incorporating simulations and classroom discussions into a differential equations course. Discusses subsequent effects on student learning attitudes and outcomes in conceptualizing and applying ideas regarding solutions to differential equations in this learning environment. Explores issues on…

Discusses current views on problem solving in the workplace, and identifies five areas for consideration: (1) knowledge representation; (2) verbally teaching strategy components of the skill--versus the learner acquiring it inductively through practice; (3) the principles of teaching procedures; (4) how to construct simulations; and (5) weighing…

Describes the development of a method for the evaluation and comparison of interactive information retrieval systems, which are based on the concept of a simulated work-task situation and the involvement of real end users. Highlights include real and simulated information needs; relevance assessments; and the dynamic nature of information needs.…

A study of four seventh-graders using an open-ended learning environment (OELE) on mechanical physics combining computer-generated graphics, computer simulations, video, and print-based materials indicated that while learners built and formalized scientific theories, in some cases, they assimilated new data into existing theories, ignored…

Examines assumptions underlying claims regarding educational technology, and as an alternative presents a framework which integrates a bottom-up view of information technology usage and a top-down view of education. Delivery of educational materials, media, computational activities including simulations and computer games, interactivity,…

Covers research conducted within the past 10 years on the topic of using computer models and simulations to aid science instruction at the precollege level. The research is categorized into three main areas: (1) students running preprogrammed simulations; (2) students creating dynamic models using modeling environments; and (3) students using…

Analyzes how 20 groups of management specialists in charge of a computer-simulated company behaved when confronted with complex problems that arose. Difficulties stemmed from an incorrect use of available knowledge, a tendency to avoid risks and reduce uncertainty, and a motivational process which sheltered the subjective sense of competence. (AEF)

Discusses the use of simulations in the history classroom. Focuses on a simulation of the German Reichstag election of 1932, used in a modern German history course at Eastern Oregon University (La Grande, Oregon). Provides information on the setting, roles, the simulation procedures, and possible outcomes. (CMK)

The effectiveness of two iterative methods of item response theory (IRT) item bias detection was examined in a simulation study. A modified form of the iterative item parameter linking method of F. Drasgow and an adaptation of the test purification procedure of F. M. Lord were compared. (SLD)

The Medical College of Pennsylvania uses outstanding senior students as teaching assistants for sophomore students needing additional observation and feedback to increase clinical skills. The seniors are less threatening than faculty and may give more effective feedback. Both student groups are satisfied with the program. (MSE)