In a social cognitive framework, teacher feedback is a relational influence that is particularly significant in shaping learners' vocational self-concept during childhood--a critical stage for career development. This study examines the relationships among perceived teacher feedback, children's competence perceptions, interests, and achievement in two core curriculum subjects: native language (Portuguese) and mathematics. The sample comprises 409 fourth-grade students (51% male), aged between 9 and 13 years, who completed self-report questionnaires. Structural equation modeling analysis revealed that positive feedback in reading and mathematics is significantly associated with children's perceived competencies in Portuguese language and mathematics, respectively. Furthermore, perceived competencies accounted for the indirect effects of feedback on both interests and grades. Conversely, negative feedback had a detrimental effect on all variables. Implications, limitations, and future directions for children's career development will be discussed.