We have developed two kinds of optical experiments: color mixture and fluorescence, using mini-torches with light emitting diodes (LEDs) that emit three primary colors. Since the tools used in the experiments are simple and inexpensive, students can easily retry and develop the experiments by themselves. As well as giving an introduction to basic…

Describes a series of optical illustions designed to explore the nature and behavior of light, the mechanics and optical principles of eyes, and the brain's learned ability to interpret what we see. (BR)

Procedures for demonstrating rainbows in the classroom are provided. Materials required include a clear plastic box (the size of a shoebox), water, and an overhead projector. Also tells how to make a rainbow on the chalkboard using colored chalk. (JN)

Describes construction of a pinhole camera with simple materials and five experiments to be conducted, as well as instructions in creating a working camera obscura. (BR)

Explains a demonstration that shows the additive nature of light using three overhead projectors. (GA)

Experiences and experiments with mirrors will spark pupils' imaginations while providing insights into the nature and behavior of light. (Author/DF)

Teachers may introduce students to anamorphic art (images designed to be looked at with conical mirrors or with mirrors diagonal to the image) with inexpensive cylindrical mirrors. By using polar graph paper, images can be made "correctly distorted" and will appear normal when viewed with a cylindrical mirror. (DH)

Discusses laser demonstration for invoking interest in science, especially physics. Describes some examples, such as diffraction, scattering, expansion by diverging lens, internal reflection in a light pipe, and illumination through optical cable. Provides some practical hints for the demonstration. (YP)

The ENKA Project is concerned with two major problem areas: the conceptions of physical and chemical phenomena, central to an upper level course, held by compulsory school pupils (grades 7-9) and the implications from descriptions of pupils' conceptions and ways of reasoning for current teaching practice. To determine conceptions held, pupils were…

Describes how students can construct kaleidoscopes to learn basic principles of reflection. Instructions are included for simple experiments using mirrors. Outlines more complicated constructions of kaleidoscopes with recommendations for variations of the experiments. (TW)

This document was developed to help teachers locate computer software to enhance the teaching of traditional physics at all educational levels. It contains a table listing approximately 900 packages. The table is organized by type of computer (Apple II, Atari, Commodore, IBM PC, Macintosh, and TRS-80) and is alphabetized first by publisher and…