The aim of our research is to develop sufficient measures and novel knowledge on the social visual attention in the field of mathematics teaching and learning. Classroom interaction has been explored on macro-level throughout decades. Our purpose is to move on to the micro-level of evidence and broaden the results received with momentary physiological measurements back to the field of educational discourse. Our research project, MathTrack, is funded by the Academy of Finland and conducted in the Faculty of Educational Sciences, University of Helsinki, Finland.