This work aims at understanding how the practice of reader sponsorship or storytelling favours the presence, participation and achievement of all students. This study, of descriptive nature, was conducted following a qualitative approach. The method chosen is the case study and the cases are restricted to three classrooms. In the first case study, the participants were 25 students from fifth year of Primary School, a trainee student and the tutor teacher. The second case study corresponds to two classrooms of the second year of Primary School. In the first classroom, the participants were 28 students, and in the second classroom, 27 students, two tutor teachers, a trainee student and 8 mothers. The information was gathered by scientific observation, semi-structured interview and documentary analysis. A deductive content analysis was conducted using the Themis tool. The results show how reader sponsorship is implemented in the cases chosen. As a conclusion, the methodological strategy of reader sponsorship promotes the presence (taking into account diversity), participation (empowerment) and achievement (progress and assessment) of all students.