The construction and uses of a device to facilitate the use of an overhead projector to show chemical reactions is presented. Materials and instructions for construction as well as reactor vessels are discussed. (CW)

Provides two demonstrations: (1) electrolyte migration of ions using colored ions which cross a strip of gelatin allowing for noticeable migration; and (2) photochemical reduction of Fe+3 by the citrate ion. Points out both reactions can be done in a Petri dish using common lab materials. (MVL)

This handbook is part of a British series of publications written for part-time tutors, volunteers, organizers, and trainers in the adult continuing education and training sectors. It offers practical advice on audiovisual aids and educational technology for tutors and organizers. The first chapter discusses how one learns. Chapter 2 addresses how…

The purpose of this annotated guide is to assist educators in locating sources of information leading to the more effective use of educational media in teaching and learning situations. Its 6 parts provide: (1) published lists of new educational media--motion pictures, filmstrips, and records, tapes and transcriptions; (2) information about…