The topic of this master’s thesis is The Extended Stay in Primary Education of Elementary School. Extended stay is a program that primary schools usually organize for pupils in the first four grades and it takes place before or after regular classes. The master’s thesis consists of two parts – a theoretical part and qualitative research. All essential components of the extended stay program, which more and more schools organize in order to meet the parents’ and students’ needs are mentioned and elaborated in the theoretical part of the thesis. As part of this thesis, a qualitative research was conducted. The aim of this research was to find similarities and differences in thoughts and attitudes between extendedstay teachers and regular classroom teachers. This research aimed to examine teachers’ general attitude towards the extended stay and their experience with work organization and planning during the extended stay. The challenges, advantages and disadvantages they encountered during the extended stay were examined. Three examinees were chosen – primary school teachers in the first four grades. The examinees differ in years of work experience in extended stay. Two out of three examinees currently work in the extended stay, while the third one is presently employed as a regular class teacher, but has previously worked in the extended stay. A semi-structured interview was used to conduct the research, and the examinees were allowed to answer questions freely and uninterruptedly.