An Application of Programmed Instruction to Laboratory Work in a Preliminary Physics Course
The physical sciences have received more than their fair share of attention from researchers in the field of educational technology. The new teaching aids and programmed instruction have been applied to both the theoretical and practical sides of all the major science subjects, but invariably these applications have concentrated on the communication of knowledge in the form of facts or procedures to the exclusion of the more subjective and attitudinal aspects of science training. This paper describes an experimental approach to the teaching of a practical physics course to the preliminary year students of a Ghanaian university. The whole course has been re‐orientated so that the practical work is approached in a somewhat unusual way in which particular emphasis is placed on ideas of accuracy. The student is led to develop an appreciation of the errors which occur in the taking of readings and in the calculation of results from those readings. The development of the course, in which extensive use is made of programmed instruction, is described and some of the problems involved in the programming of subjective material such as this are discussed. The results of pre‐ and post‐testing are presented, and gain scores are related to attitude scores as well as other achievement measures.