A secondary school teacher presents his teaching methodology concerning the kinetic theory of gases and gas laws. (CP)

Explains the theory and laboratory construction procedures of a positive photoresist. (CP)

Describes a laboratory procedure which does not demand sophisticated equipment. (CP)

By measuring certain transport and degradation properties of chemicals one can establish priorities for the routes and likely points of residence of these materials in the environment. Outlined are transport and degradation tests. (Author/MA)

A new course, Environmental Chemical Engineering, introduced at Exeter University in 1972, is described. Focus is on cooperation among five participating departments, coordination of teaching, and the coherence of what was taught. The importance of the interrelationships existing between a new discipline and those outside the university are also…

Considers perceived trends of lesser ability students entering introductory chemistry courses. (SL)

Summarizes the National Assessment of Educational Progress (NAEP) study that, among other things, profiles the cognitive abilities of 17-year-olds. The editorial ends by asking how chemistry teachers can make use of this information to improve their effectiveness in teaching to the present type of student. (MR) Aspect of National Assessment (NAEP)…

Proposes a program for chemistry teacher education to provide students with the broad outlook considered necessary for interdisciplinary treatment of environmental issues. A course of study syllabus is included along with a comparison of undergraduate chemistry programs. (MR)

Provides the summary report of a symposium. The major topics summarized are, how many foreign chemistry students are in American universities, the quality of their academic preparation, language problems, what kind of education is best for them, and reverse brain-drain. (MR)

Provides an application of a direct group theory method to the determination of the number and symmetry of M-C-O groups. The method is explained and three illustrative examples are given. (MR)

Experimental procedures for studying enzyme activity using a Spectronic 20 spectrophotometer are described. The experiments demonstrate the effect of pH, temperature, and inhibitors on enzyme activity and allow the determination of Km, Vmax, and Kcat. These procedures are designed for teaching large lower-level biochemistry classes. (MR)

A quick, sensitive method which is adaptable for quantitating periodate consumption in a variety of undergraduate laboratory contexts is described. A laboratory procedure is also given that may be used for measurements of reaction rates as a function of temperature. (MR)

A rapid scanning polargraph, constructed from inexpensive parts, which can delay voltage scan for a predetermined length of time, is described. Schematic diagram of the instrument is included. Uses of the instrument are described. (MR)

Attempts to identify successful teaching methods and to study teacher-pupil interactions using classroom based research techniques, are discussed in this article. Conclusions are that further studies need to be done to investigate the role of the teacher and the relationships between teacher intention, action, and the teaching topic. (Author/MA)

Describes a low cost potentiostat/coulometer which can maintain an eletroylsis current of up to 100 MA at cell voltages as high as 100V. (Author/SL)