In November 2017, the government of São Paulo sanctioned the law that frees the use of cell phones in state schools of primary and secondary education for pedagogical purposes. But if each student could access social networks during classes, would he or she alone be able to concentrate and thus control the addiction to compulsively connect him or herself with other people? How could the teacher be considered a figure of authority by students if each of them interrupted the class to answer a call from their parents through their cell phones? Questions such as these led the authors to elaborate the following objective: to reflect critically on the culture of cell phones and its unfolding in the reconfiguration of the cognitive and affective relations between teachers and students.