Hands-on dissections of animals are traditionally regarded as an essential part of biology education. Nowadays, regardless of the reported educational benefits, there is a gradual change in the concept and acceptance of hands-on dissection, leading in many cases to its abandonment in schools and its replacement with alternatives such as 3D models,…

Animal dissection is practiced to varying degrees around the world and is particularly prevalent in North America throughout all levels of education. However, a growing number of studies suggest that nonanimal teaching methods (NAMs) (e.g., virtual anatomy tools and three-dimensional models) are better for achieving learning goals compared to…

Educational versions of Millikan's oil-drop experiment have frequently been criticized; suggestions for improvement either focus on technical innovations of the setup or on replacing the experiment by other approaches of familiarization, such as computer simulations. In our approach, we have analysed experimental procedures. In doing so, we were…

These proceedings contain papers of the 3rd International Baltic Symposium on Science and Technology Education (BalticSTE2019) held in Šiauliai, Lithuania, June 17-19, 2019. This symposium was organized by the Scientific Methodical Center "Scientia Educologica" in cooperation with the Institute of Education, Šiauliai University. The…

Describes a spreadsheet that can be used to show the changes in intensity of Fraunhofer diffraction patterns produced by a single and double slits arrangement. Discusses a practical demonstration of diffraction that allows data to be logged and entered into the spreadsheet. (DDR)

Investigates the effects of using molecular modeling on students' spatial ability, understanding of new concepts related to geometric and symbolic representations, and perception of the model concept. (Author/CCM)

Describes an interactive simulation model which can be used to demonstrate population growth with discrete or overlapping populations and the effects of random, constant, or density-dependent mortality. The program listing (for Commodore PET 4032 microcomputer) is included. (Author/DH)

The problem of this study was to develop, validate, and establish the reliability of a computer simulation which would: (1) distinguish between concrete and formal thinking patterns related to control of variables; (2) be easily administered to a class of secondary school age subjects; (3) preserve the interactive aspects of the Piagetian task;…

Describes a project that explores the use of interactive computer software for teaching Einstein's special theory of relativity to secondary students. Also describes ways to use computers to help students visualize and experiment with otherwise inaccessible phenomena. (ZWH)

A mechanical analogy between the microscopic motion of a charged carrier in an ordinary resistor and the macroscopic motion of a ball falling along a slanted board covered with a lattice of nails is introduced. The Drude model is also introduced to include the case of inelastic collisions. Computer simulation of the motion is described. (KR)

Shows how some of the simple ideas in complexity can be investigated using a spreadsheet and a macro written in Visual Basic. Shows how the sandpile model of Bak, Chao, and Wiesenfeld can be simulated and animated. The model produces results that cannot easily be predicted from its properties. (Author/MM)

Examines various types of software useful in teaching about nuclear energy. Includes a list of 11 software resources (including program name, source and cost, system requirements, and brief comments about the program). (JN)

Provides simple techniques for demonstrating and recording the effect of the changing shapes of moving objects when viewed through a moving slot. Includes a puzzle. A computer shareware program (IBM compatible) that simulates the distortions is available from the author. (MVL)

Describes the use of the computer software "Graphs and Tracks" a tool for interactive computer instruction, in teaching one-dimensional kinematics concepts and connecting these concepts to their graphical representations. Provides ordering information. (JRH)

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)