The subject of the research is focused on questioning teachers' attitudes in reference to using ICT competencies in the classroom, considering the gender, years of service and education, while the problem of the research concerns the question: What are the teachers' attitudes in reference to using ICT competencies in the classroom? Regarding to the previously defined subject and problem, the aim of this research is to question the attitudes of teachers--reflective practitioners in reference to using ICT competencies in the classroom considering the gender, years of service and the education. The teachers' attitudes in reference to using ICT competencies in the modern teaching, in the teaching practice research and for self-development were examined by using the Likert scale which consists of 31 items, especially constructed for the need of this research. The research included 100 primary school teachers with various years of service from the city of Nis (N = 100). The results showed that there are no statistically significant differences in reference to the variables: gender, years of service and the education concerning the teachers' attitudes towards importance of using ICT competencies in the classroom. They are mostly considered to be insufficient. Thus, the respondents recognize the need and the importance of using ICT in preparation and teaching realization and they consider it as an important part of their professional development.