The simulation of titration and qualitative analysis experiments by means of computer-driven laser videodisc recordings is described. (JN)

Describes a specialized course for entrepreneurship training for students interested in operating their own business. This one-hour, year-long course for seniors focuses on teaching students business planning and management competencies. The course involves computer simulations, development of a business plan, and simulated business operation. (CT)

Describes a computer program (for the IBM microcomputer) which simulates pulsatile events in the heart in time frames that approach the speed of physiological events. The program also simulates the experimental laboratory in which the mechanics of an isolated heart can be studied. (Author/JN)

Four experiments involving 180 undergraduates evaluated the effectiveness of computer graphics in improving estimates for algebra word problems. Variations in the simulation resulted in successful and unsuccessful programs as measured by the frequency with which students improved their estimates. Quality of feedback to students while learning is…

Describes an experiment which allows students to identify the nature of the time-course for chymotrypsin and to obtain mechanistic information on the two kinetic phases in terms of their concentration dependence. Also describes the computer simulation (available from the author) used in the experiment. (JN)

Discusses the theoretical foundations, history, and advantages of educational simulations. Describes two computer simulation programs. (FL)

Discusses factors which determine whether there is a need for simulation and objectives associated with a simulation effort. Also discusses characteristics of existing software packages which determine if instructors should use the software or develop their own software for the particular problem under analysis. (JN)

The study summarized in this paper explored policies for improving open online content development projects with respect to growing the development community and improving the quantity and quality of materials developed. The study made use of dynamic feedback simulation and interviews with the members of an established content development…

Maximum likelihood and Bayesian estimates of proficiency, typically used in adaptive testing, use item weights that depend on test taker proficiency to estimate test taker proficiency. In this study, several methods were explored through computer simulation using fixed item weights, which depend mainly on the items difficulty. The simpler scores…

Many imputation techniques and imputation software packages have been developed over the years to deal with missing data. Different methods may work well under different circumstances, and it is advisable to conduct a sensitivity analysis when choosing an imputation method for a particular survey. This study reviewed about 30 imputation methods…

This study investigated changes in students' cognitive reasoning as they analyzed the dynamics of a rainforest ecosystem (El Yunque) in the aftermath of a hurricane in Puerto Rico. Students explore the virtual rainforest to study what happened to a type of frog after the hurricane. The culminating event is a simulation in which students manipulate…

This study explored the mental components that are most important for successful problem solving. Four components were studied: cognition, metacognition, noncognitive variables, and justification skills. It was hypothesized that cognition and knowledge of cognition would predict success at solving well-structured problems, which have one correct…

Connectionist models apply various mathematical rules within neural network computer simulations in an effort, among other things, to mimic and describe human memory associations and learning. Learning involves the interaction of information provided by instruction with existing information already in the learner's memory (Ausubel, 1968; Bruner,…

As museums and educators struggle with the challenges of presenting their material in a digital format, many overlook the application that has spearheaded the development of virtual reality for the average consumer: 3D realtime game engines. These 3D game engines offer greater versatility, usability, maturity, simulation, and codebase than most…

Trickshot! is an exploratory environment that allows learners to experiment with various physical properties to develop an intuitive understanding of the behavior of objects in physical systems. The software is geared to secondary students with little exposure to pool or physics. When used in conjunction with meaningful class activities, such an…