The searching for a better understanding of the interactive process that is taken place inside a classroom has motivated the development of some researches, willing to visualize its main complex and multiple variables that are established among its members. It is important to mention that such variables should be concerned not only with their cognitive aspect, but the subjective and emotional aspects, as well, since they could represent an obstacle or a tool when dealing with the whole learning process.And based on such concept and the Vigotski´s theory, we have decided to study the main social interactions and the emotions that were released between a Physics Teacher and her students, when teaching the theory of a body in a state of static equilibrium. The outcomes have shown that the teacher should be aware of the emotional aspects regarding the social interaction that are established with and among the students, optimizing in that way the educational resources applied inside the classroom.