Introduction: The aim of the study was to describe the teachers’ views on the professional development activities, the frequency of the teachers’ participation to such activities and effectiveness of these professional development (PD) activities. What’s more, it was aimed to analyse the relationship between PD activities that the teachers participated and their job satisfaction (JS).

Methods: The sample of the study comprised of 357 teachers. In order to seek the answers to the research questions, correlational research models were used in addition to survey. The data was collected through implementation of two different instruments. These were Participation to PD Activities Questionnaire (survey) and Job Satisfaction (JS) Scale. These instruments were developed within the scope of the study.

Results: The findings of the study could be summarized as follows: the teachers’ frequency of participation to peer coaching-based PD activities, participated PD activities, number of individualized and self-directed PD activities was at a lower level; however, the teachers restated that they experienced positive effects at higher or moderate levels from PD activities in their teaching practices. Within the scope of the existing study the hypothesis was tested that PD activities would increase the teachers’ job satisfaction and the findings were supported. It was seen that there was a positive relationship between the PD activities participated by the teachers and the teachers’ job satisfaction.

Discussion: In the study it was noticed that more than one third of the participant teachers did not perform PD based peer coaching and observations, but more than one third of the teachers accessed virtual platforms and watched videos and related feed on lecturing and techniques for PD. In TALIS study done at OECD countries, it was noted that almost half of the teachers participated to peer coaching-based activities.

Limitations: Data were collected from teachers that research is limited with teachers’ perceptions. Research is limited with teachers’ professional development activities and their job satisfaction.

Conclusions: It was found out that very few teachers attended educational congresses to present their activities/scientific studies. Therefore, it might be recommended to improve teachers’ study skills in terms of scientific studies, and they might be encouraged to present their studies at conferences.