The main objective of the present research is to investigate teachers' opinions concerning microteachings as a training technique. For research purposes, a case study was conducted, studying a sample of secondary education teachers in the School of Pedagogical and Technological Education (ASPETE) in Kozani, Greece. Among the research's main findings is teachers' belief that microteachings serve as a beneficial tool which helps them improve their teaching skills, having also a significant effect on various aspects of teaching.