Describes an experiment suitable for high school physics classes in which students determine the wavelength of electromagnetic radiation of u.h.f. television transmissions. Elaborate equipment is not required, and details are given for the construction of a dipole. (JR)

Presents a teaching unit on the Langmuir absorption isotherm suitable for advanced secondary school chemistry classes. Describes the experimental investigation of the isothermal adsorption of sulfur dioxide on charcoal, and discusses the derivation of the Langmuir equation and some applications. (JR)

Describes the procedure for making a quantitative analysis of organic compounds suitable for secondary school chemistry classes. Using the Schoniger procedure, the organic compound, such as PVC, is decomposed in a conical flask with oxygen. The products are absorbed in a suitable liquid and analyzed by titration. (JR)

Includes eleven topics relating to laboratory activities, experimental procedures, and teaching materials suitable for secondary school chemistry classes. (JR)

Includes ten topics relating to laboratory activities, experimental procedures, and teaching materials suitable for secondary school physics classes. (JR)

By using minimal equipment it is possible to demonstrate Faraday's Law. An electronic desk calculator enables sophomore students to solve a difficult mathematical expression for the induced EMF. Polaroid pictures of the plot of induced EMF, together with the computer facility, enables students to make comparisons. (PS)

"Media impact demands a balanced relationship between the hardware 'delivery system' and the software 'message content.' Dr. Philip Lewis, now President of Instructional Dynamics, Inc., reviews progress during the Sixties and forecasts developments in the Seventies. (Editor)

Describes a project involving the integration of inorganic and organic chemistry by a study of copper determination involving an organic complex. (TS)