Agriculture, industry and medicine are being altered by new biological technologies. Today's students are the citizens who will make decisions about associated ethical issues. They need to have the knowledge that will enable them to make informed choices. Hence biotechnology has an important place in science education. The aims of the research were to: 1/describe the state of biotechnology teaching in NSW; 2/determine whether teachers in NSW do not teach biotechnology because they do not have the necessary knowledge and experience; 3/identify other reasons why NSW teachers choose not to teach biotechnology; 4/describe problems encountered in teaching biotechnology in NSW; 5/suggest ways in which the problems encountered in the teaching of biotechnology can be overcome. Quantitative and qualitative methods were used in a complementary way to investigate these aims. In a sample of teachers surveyed, many reported that they chose not to teach biotechnology because they did not have adequate knowledge and experience. Other obstacles were identified. These were: 1/ the difficulty of the subject matter; 2/ the lack of practical work; 3/ lack of a program for biotechnology in junior science. The results of this trial suggested that a biotechnology unit should be developed in collaboration with the teacher and that time needs to be made available for school based program development. / Master of Education (Hons)