An artist's impression of a student annotating content on a tablet with the help of smartglasses during a Chemistry course. The tablet displays course material related to the experiment that the teacher is performing live. The student's smartglasses display annotations made to that course material around the tablet (a). The student also uses the smartglasses to capture the experiment as a video that he then inserts as an annotation (b), that eventually gets displayed with links to the relevant part of the course material (c).