The aim of this study is to state what the Science and Technology Teachers' thoughts about in-service training, and which subjects they need to have in-service training. The research done by asking 3 open-ended questions to 12 Science Teachers and 11 Primary School Teachers, and by doing oral discussion with 11 Primary School Teachers. Datums were analyzed and commented qualitatively. Teachers especially request having in-service training about teaching methods and techniques, using laboratory materials, experimental and computer applications. In-service training must be madatory. Since the identitiy and the career of the trainer effects the reliability, qualified people must surely be charged in in-service training. For the success of the program, we figure that the lack of all these issues of the teachers' that need to have in-service training should definitely be removed (c) 2011 Published by Elsevier Ltd. Open access under CC BY-NC-ND license.