Describes the evolution of techniques of teaching external and internal students identical biology courses (introductory and advanced). Identifies and describes solutions to problems of communication, organization of practical work, and presents a perspective of course. (AL)

Describes use of laboratory kits to provide practical work for students away from the laboratory. Opportunity for interpretative discussion of data obtained is provided by access to tutors in open laboratories, which contain more elaborate equipment for use when needed. (AL)