Describes a paper chromatography experiment designed for fifth and sixth grade students. Utilizes common materials that need no special ordering. Background information, conclusion questions, and sample chart are included. (MA)

Discusses several examples of the modern mathematics familiar to the pupils at the age where the mole concept is introduced, to help the teacher adopt an appropriate approach when dealing with this topic. (GA)

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)

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)

This experiment is suitable for illustrating synthesis-analysis and isopolyanion chemistry at the freshman level or at a more advanced level. (BB)

In this general chemistry experiment students calculate changes in free energy of formation of inorganic salts from the free energy of formation of ions. Then they test the conclusions of their calculations by mixing solutions of the ions. (BB)

Describes a study correlating observational test question scores and lab notebook evaluations. Results indicate that, while there is no correlation between those two factors, there are problems with evaluating notebooks objectively. (MA)

Comparison of SAT math scores, high school grade point averages (GPAs), and final chemistry grades for both the 1972 and 1976 fall semester classes of the first-year chemistry course at the University of Virginia showed that SAT math scores were a much better predictor of final chemistry grades than were high school GPAs. (BB)

A discussion is presented on what should be taught about orbitals in high school chemistry. (BB)

Lecture-demonstrations are presented on the topics of measurement errors and formation and dissolution of precipitates. (BB)

This is a college-level general chemistry experiment. (BB)

Describes a lecture teaching technique called lap-dissolve projection in which two slide projectors are operated alternately so that one visual image fades away while the next appears on the same screen area. (MLH)

Discusses the use of lap-dissolve projection to give students pre-laboratory instruction on an upcoming experiment. In this technique, two slide projectors are operated alternately so that one visual image fades away while the next appears on the same screen area. (MLH)

Discusses the nation's universities producing the most chemistry graduates at all degree levels. Lists in order of number of graduates the top 25 institutions granting bachelor's, master's, and doctor's degrees. (MLH)

Discusses the current trend in education towards empiricism and measurement, and urges that education include human values. (MLH)