COMPUTERS IN SCHOOL AND VOCATIONAL-TRAINI NG - NEW DEMANDS ON TEACHERS AND TRAINERS

For several years now the benefit of using computers in school and voc ational training has been undisputed. However, at present, disagreemen t can be observed concerning the question which instructional tasks ca n be managed autonomously by computers. An evaluation of instructional functions taken on by computer-based teaching systems reveals several short-comings. It is the authors' aim to define different classes of central teaching skills (student modelling, specialized knowledge, and instructional strategies) on the basis of present day implementations of computer-based teaching systems. Within each category, both global achievements of the teaching systems and necessary, complementary tea cher activities are specified. The resulting classification scheme all ows to both classify typical teaching systems and identify specific sk ills which ought to be stressed in future teacher training.