The pathos, ethos and logos are the three types of the rhetoric of Aristotle, to define each one we can say that logos is link to the logic, and orator that use the logic to convey the message in the audience, the ethos is refer to the ethics, the credibility of the orator and his bound with the audience will support his/ her speech and the pathos refers to the experience, the orator uses in this case the emotions to move the audience, now, this is what the teacher used, he used his experience and emotions he evoked in the students to calm them before the test.
