This research focuses on the reflexive process I undertook about my English classes in a Public High School, in Rio de Janeiro. The study aims at showing my own and my students understandings about the lack of motivation during my classes, in the second semester of 2009, and about the changes that began in 2009 and that continued through the first and second semesters of 2010. This is a qualitative and interpretative research, whose theoretical and methodological framework is based on the principles of Exploratory Practice and on the concepts associated with the Narrativization of Experience. The diaries were written in two different moments: the first one in the second semester of 2009 and the second one, during 2010. In both phases, reflexive writing is understood as action for understanding. The teacher s diary and the student s compositions, which are considered as instruments of reflexive research, were analyzed through evidentiality, modality in discourse, and construction of self. The analysis focuses on the construction of emotional, reflexive and agentive self as projected through a reportive epistemological stance. The study indicates not only a review and a ressignification of the teacher s as well as the students belief systems, both becoming more interesting and productive. Articulating evidentiality with positioning in narratives of experience was extremely significant for this dissertation as well as for the teacher in her practice.