A device is described to assist in designing prototype interfaces between a minicomputer and an external device. This device is especially useful in undergraduate student projects, where time is limited. (BB)

Information is given on the basic chemistry of fire and on the characteristics of flammable liquids. (BB)

This first article includes background material on computers that will be of value in understanding subsequent papers in the series. It also discusses the advantages and problems of implementing computer-based educational materials at locations and on machines for which the materials were not originally designed. (BB)

Techniques for digitalizing analog signal data are presented and compared. The techniques presented are: boxcar averaging, ensemble averaging, unweighted digital filter, weighted digital filter, and analog filter. (BB)

The design and use of an instrument simulator is described. Used for student laboratory experiments illustrating the use of mini-computers, it can provide, at very low cost, a repetitive, repeatable output to duplicate the readout of various instruments such as electrochemical experiments, mass spectrometers, pulsed magnetic experiments,…

The bonding of dioxygen in metal-dioxygen complexes is discussed, paying particular attention to the problems encountered in assigning conventional oxidation numbers to both the metal center and coordinated dioxygen. Complexes of iron, cobalt, chromium, and manganese are considered. (BB)

Describes undergraduate chemistry curricula in which the student is asked to either build a model of one asymmetric unit in the unit cell and to indicate the positions of the symmetry-related units by putting in key atoms, or to identify on a prebuild model the asymetric and symmetry-related units. (BB)

Molecular models are described which are suitable for illustrating the nucleic acids. The same principles used to construct these could be applied to models of polypeptides. (BB)

A new, small magnetic susceptibility system is described which can be constructed from commercially available components for less than one hundred dollars for use with a standard laboratory balance. (BB)

An electron correlation calculation is presented for the hydrogen molecule which should prove useful in presenting the idea of electron correlation. (BB)

Chemistry pretest scores, high school chemistry grades and, to a greater extent, math SAT scores were useful predictors of college general chemistry grades. Regression analysis of all these predictors combined was used to construct an expectancy table which is being used to identify and advise underprepared students. (BB)

This paper describes the use of information mapping in chemistry and in other related sciences. Information mapping is a way of presenting information without paragraphs and unnecessary transitional phrases. (BB)

A reasoning test was administered by all science teachers at a high school. This report presents the results of the test and explains how this information can be used to improve teaching. (BB)

A discussion is presented of balancing oxidation-reduction equations that have multiple sets of balancing coefficients or confusing stoichiometry. (BB)

Introductory material is presented on coal. Topics include: (1) What is coal.; (2) How is it mined.; and (3) What happens when it is burned? (BB)