This paper will discuss the issue of teachers' reflection and self-reflection within the scope of teaching and extracurricular educational activities. Every teacher should realise the significance of the elements of reflection and self-reflection as they may help to improve their educational work. Only those teachers who evaluate and revise their decisions on a regular basis and rectify individual educational elements have an excellent starting point to achieve progressive changes in their work. Teachers with routine educational methods should be replaced by reflective professionals aware of the need of their continual improvement, therefore they should permanently contemplate about themselves, the students and external and internal teaching conditions. The research focuses on determining the frequency of teachers' reflection of educational elements and the frequency of their professional self-reflection from the point of view of the career level and the type of education. The tool used for the collection of data was a questionnaire of our own design, mostly based on response scales.