Reports on efforts by the British Broadcasting Corporation (BBC) School Television to supply relevant visual material in the sciences that would not otherwise be available to teachers as an enrichment of their own courses. Describes the developmental stages and end product of two programmes designed to meet this goal. (GS)

Presents the problems of Third World countries in acquiring science equipment to augment their science curriculum development plans. Outlines an attempt by Kenya Science Teachers College to produce and supply science equipment. Describes the approach to production, quality control, and costing and sales. (GS)

Describes a procedure for establishing a viscosity trend through a homologous series and presents sample data. (GS)

Describes various methods of rendering visible the paths followed by a laser beam for direct viewing or for photographic purposes. (Author/GS)

Discusses teaching science as useful knowledge, as a process, or as technology. (RH)