What is the nature and what is the role of trust between teacher and student in academic education at school? Providing a philosophically informed answer to these questions is the aim of this paper. In its first part, I present a relationship account of trust based on two fundamental assumptions: first, trust between teacher and student is essentially about them being in a trust relationship, and second, the reasons for trust are relationship dependent. The second part explores the role of trust by looking at two aspects of academic education at school: the student's acquisition of knowledge from the teacher's testimony and the student's development of epistemic confidence, the latter being a key constituent of competent epistemic agency. Drawing on findings from developmental psychology, I explain how trust is involved in successful academic education at school. My aim is to provide a detailed conception of trust in the teacher-student relationship, as well as a conclusive argument for the importance and the value of trust in academic education at school.