Professional vision in and on action: Two sides of the same coin?

Professional vision, albeit a well-researched concept, has mostly been researched as professional vision on action, i.e. not in the act of actual teaching. Modern technologies, such as eye-tracking, allow us to explore also professional vision in action, i.e. when teachers actually teach (e.g. Cortina et al., 2015). This, however, bids the question how professional vision on action and in action differ. Our study aims to explore this using two methods of eye-tracking: we asked teachers to wear SMI 60 Hz eye-tracking glasses (ETG) during instruction. Later, sequences from a video tape of the same instruction (camera aimed at students) were replayed to the same teachers and their eye-movements were monitored (RED 250 mobile 250 Hz – remote ET). They were also asked to comment on the videos. Bearing in mind that these two viewpoints are very different, we opted for an in-depth analysis of the gaze replays from ETG and remote ET (concurrent viewing). This analysis takes into account the timeline of the video, the context, the events, and also the teacher’s comments.