Embodied knowledge & teaching

From How to Take Smart Notes by Sönke Ahrens:

Experts rely on embodied experience, which enables them to reach the state of virtuosity…

In an experiment, beginner and expert paramedics and their teachers were shown scenes of CPR performed by either experienced paramedics or those who had just finished their training. As you might expect, the experienced paramedics were able to spot their kind correctly in almost all cases (~90%), while the beginners were more or less just guess (~50%). So far, so good. But when the teachers watched the videos, they systematically mistook the beginners for experts and the experts for beginners. They were wrong in most of the cases (and only right in a third of all the cases).