Article ID: 46054
The present study developed a method to detect teachers’ cognitive load fluctuation throughout lesson time by means of real-time measuring of skin conductance and peripheral skin temperature. Participants of five elementary school teachers, crossing multiple grades and school subjects, wore the multimodal wearable devices and conducted lessons. To demonstrate adequacy of the method, the present study investigated the relations between these physiological psychological indices and teachers' body movements accompanied with teaching behavior, subjective ratings, and a retrospective interview using recorded videos. The result indicated that skin conductance and peripheral skin temperature values are insusceptible to teacher's physical movements, and the possibility of continuous measurement of teachers conducting lessons with various body movements. The result also suggested that class situations in which both teachers' skin conductance increase and peripheral skin temperature decrease could be interpreted as they are imposed cognitive overload.
