Affective computing technologies sense the emotional state of a user (via sensors, microphone, cameras and/or software logic) and respond by performing specific, predefined product/service features, such as changing a quiz or recommending a set of videos to fit the mood of the learner. Affective computing tries to address one of the major drawbacks of online learning versus in-classroom learning _ the teacher’s capability to immediately adapt the pedagogical situation to the emotional state of the student in the classroom.