This reaction can form the basis of a laboratory experiment for students who have mastered basic spectroscopy. The structure of the product can be assigned from four reasonable possibilities on the basis of the nmr spectrum. (BB)

Explains how Zebrina pendula can provide an excellent material for demonstrating a variety of cellular features in plants by using a dissecting microscope. (GA)

The use of participatory lecture demonstrations in the classroom is described. Examples are given for the following topics: chromatography, chemical kinetics, balancing equations, the gas laws, kinetic molecular theory, Henry's law of gas solubility, electronic energy levels in atoms, and translational, vibrational, and rotational energies of…

Describes a laboratory demonstration to show how to determine the focal length of a thin glass lens under water. (GA)

Describes a demonstration for measurement of biophysical signals produced by the human body. The signals, after amplification, could provide acoustical feedback through a voltage-controlled oscillator (VCO), or they could be seen either with an oscilloscope or a high speed chart recorder. (GA)

Describes the apparatus used and the experiments performed by a blind student in a freshman analytical chemistry course. (GA)

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

The Japanese morning glory, a short-day plant, is an excellent specimen for studying photoperiodism. This article gives ideas for investigations including the effects of hormones, light quality, and temperature. Preparation of the seed is also discussed. (BB)

A ten-day minicourse is described in which seventh graders build, install, and observe a bird house. (BB)

Describes how to organize Learning Centers, the basic curriculum decisions to be made with respect to learning objectives, activities, materials involved, and the process of evaluation to monitor pupils' progress. (GA)

Describes a computer model kinetic theory experiment for the college physical chemistry laboratory. (HM)

Presents methods for analyzing soil and water samples in this classroom. Includes a classroom diagram, a listing of suggested materials, and the procedures for a classroom simulated pond. Relates classroom activities to work at a natural pond. (MA)

Provides hints for teaching a unit on fossils, with special emphasis on the use of field trips. Suggests several points for a successful field experience and describes how the author used local fossil sites to involve students in field trips. (MA)

Describes a teaching guide in aviation education for grades 2 through 6. The guide contains activities designed to enrich an existing science curriculum. An address for ordering the guide is included. (MA)

Describes seven strategies used to make CEEP modules readable and appealing to students. These include involving classroom teachers in writing the modules, early analysis of word- and concept-levels, and using a list of familiar words in editing the modules. (MA)