EN
The article describes the notion of teacher’s emotional labor, which is an important and often neglected subject in didactics and pedeutology. The thesis is that the manner in which a teacher's emotional labor is being conceptualized affects test method and interpretation. The article presents three different manners in which emotional labor may be conceptualized: (1) emotional labor as process of emotion regulation (psychological approach); (2) emotional labor as a work requirement (sociological approach); (3) emotional labor as a transformation and development tool/as a byproductive labor (critical approach). Each approach is assigned to a different methodological perspective which may be used by educational researchers: (1) quantitative research; (2) qualitative research; (3) “new'' qualitative studies.