The article brings an analysis of the life stories of teachers and their implications in their teaching practices. First of all, present the scenario of researches that make use of oral sources as resource for their investigations applied to the field of education and explore the potential of the interviews as a method for collecting data, always arguing about the importance and complexity of the use of this kind of source in researches in education. The conclusion expresses a reflection, based on the teaching career of two educators, which highlights aspects related to the implication of the personal experience in their teaching options and practices, covering both higher education and elementary/high school levels.