Tutoring software that knows when students' are losing interest in a lesson and can adjust to keep them on track is being tested by researchers in China and the UK.
The system keeps track of students' attention by measuring physical signs of emotion. It then varies the speed and content of a lesson based on an assessment of their level of interest. Ultimately, it could improve electronic tutoring programmes, say the researchers involved, thus helping developing countries deliver education to remote areas that lack educational institutions.
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