In the activity study, the teacher studies the situation in the classroom and makes assumptions about it. To determine the reason for the presence of a particular situation, it is necessary to comprehensively monitor the situation. Such an observation leads to certain conclusions. Systematic research develops reflection in order to change our experience, to make the identified situation different. Action research-Action research is a process involving the implementation of consistent, consistent, planned actions in order to improve learning and learning experience, as well as systematic monitoring of the results obtained during the study. Reflection in action is a process of careful reflection in the process of performing actions (for example, teaching and learning) in order to plan and perform previous steps, critically analyze and evaluate the results of activities.

Professional improvement is impossible if a modern teacher does not reflect on his actions, does not conduct an in-depth analysis of achievements and, conversely, does not conduct inhibitory factors in working with students, planning and conducting classes in the system. Working in a professional community involves teachers interacting to solve common problems, choosing common strategies, studying their effectiveness in working with students and the "research in action" strategy.

The international study of TALIS teaching and learning systems conducted by the OECD focuses on the conditions in which the current teacher works, how the learning environment is created for a better and effective learning process. This study showed that the success of students is directly related to the quality and nature of educational processes. The most important thing in this work is the high professionalism, development and qualitative growth of the teacher. High-quality education is able to eliminate the lack of good knowledge formed by students with low academic performance. The arrival of an enthusiastic, properly adapted teacher to the professional activity remains a problem. This is due to the lack of information about strategies by which teachers can interact in the professional community, exchange experiences, study their activities to develop student achievements.