Defined as an emotional state, emotion regulates the life of each person: Astonishment, joy, fear, disgust and anger stand by anyone. To be confronted with emotions face to students by teaching a foreign language is a constant for German teachers. Working at secodary schools , they provid an european language which is subject to several stereotypes. In fact, German is a cognitive and conative challenge for learners who find it difficult and who are not natives. Those have each a learning style for German skills. This context exposes the teachers to several (positive and negative) emotions face to learners. Their failures and successes do not let the teacher indifferent. Through this article, we explore the origin of emotions of German teachers and their impact in pedagogic acts. We start with the hypothesis that the nature of the teacher's emotions determines the degree of motivation of the learners. In order to lead this study, we explore a sample of 25 German teachers from secondary schools. We use theoretical models of origin of emotions (Scherer) permitting to understand this psychological phenomenon in an academic environment. Keywords: emotions, skills ,teachers,learners, ,cognition,conation, communication.