A computer program that simulates the random evolution of a metabolic pathway is given. The program shows that natural selection preserves favorable traits if they occur in a specific sequence. (KR)

A graphic, interactive software program that is suitable for teaching students about the measurement and ion dependence of cell membrane potentials is described. The hardware requirements, the aim of the program, how to use the program, other related programs, and its advantages over traditional methods are included. (KR)

Advocates using computer-simulated learning environments to allow students to develop their own problem-solving rules when it comes to collecting and evaluating scientific data. Describes the use of "Identibacter interactus" to simulate identification of an unknown microorganism. (WRM)

Describes a study of the effectiveness of computer-simulation programs in enhancing biology students' familiarity with ecological modeling and concepts. Finds that computer simulations improved student comprehension of ecological processes expressed in mathematical form, but did not allow a full understanding of ecological concepts. Contains 28…

We report on a computational chemistry course for undergraduate students that successfully incorporated a research project on the design of new contrast agents for magnetic resonance imaging and shift reagents for in vivo NMR. Course outcomes were positive: students were quite motivated during the whole year--they learned what was required of…

While learning a complex skill in science using a computer-based simulation, optimal timing of information presentation facilitates learning and enhances test performance. An optimal information presentation format is proposed: supportive information is presented before practising a skill, and procedural information is presented during practice.…

Background: The current mode of stoichiometry instruction employs a passive pedagogy that consists of students reading, listening, watching, and memorizing disembodied facts, procedures, and principles in preparation for future application. But chemistry students are often subsequently unable to apply this stoichiometry knowledge in equilibrium…

Despite a long tradition, conventional anatomy education based on dissection is declining. This study tested a new virtual reality (VR) technique for anatomy learning based on virtual contrast injection. The aim was to assess whether students value this new three-dimensional (3D) visualization method as a learning tool and what value they gain…

Computational science includes the use of computer-based modeling and simulation to define and test theories about scientific phenomena. The challenge for educators is to develop techniques for implementing computational science in the classroom. This paper reviews some previous work on the use of simulation alone (without modeling), modeling…

Computerized science simulations were employed by high school biology students in an attempt to enhance their problem-solving skills. The simulations were administered under unguided (discovery learning) and guided (guided discovery learning) conditions while a control group received no simulations. To ascertain the effectiveness of the…

Describes the creation of the computer program "BOUNCE," designed to simulate a weighted piston coming into equilibrium with a cloud of bouncing balls. The model follows the ideal gas law. Utilizes the critical event technique to create the model. Discusses another program, "BOOM," which simulates a chain reaction. (CW)

Discusses the advantages of basing computer simulations on analogues of nature rather than mathematical models. Explains the concept of heritability and describes how a computer simulation can help undergraduate students understand this concept. (ML)

Discusses the nature and effectiveness of computer simulations. Also discusses the development of simulations, providing an example of a simulation which deals with population growth. A sample lesson plan related to the simulation is included. (JN)

Describes (in separate articles): computer simulations in science education; how junior high school students revised an experiment; a framework for assessment in science; physics, relevance, and understanding; a science module for a sixth form general studies course; and assessment of providing science education for the 16-19 age group. (JN)

Provides examples which illustrate how microcomputers can facilitate various aspects of chemistry instruction, focusing on computer assisted instruction (CAI) and on the simulation of chemistry experiments. Brief comments on writing CAI programs are also included. (JN)