In french and english speaking countries, the articulation between epistemological beliefs, conceptions of teaching and learning and pedagogical practices of secondary school teachers in the natural sciences and humanities has been little studied (Araújo-Oliveira, 2012 ; Bartos et Lederman, 2014 ; Wanlin et al., 2019). Yet, while teachers display predominantly constructivist beliefs about teaching and learning, their teaching practices remain rather passive (OECD, 2019). Like in Therriault et al. (2018-2023), this article explores the characteristics of epistemological beliefs, conceptions of teaching (...) and learning, and teaching practices among a population of 112 secondary school teachers (beginners, intermediate and experienced) in the humanities and natural sciences in French-speaking Belgium. In a second step, we explore the articulations between these three theoretical constructs either from statistical analyses or from a more interpretative perspective. Quantitative analysis of the data (PCA, factorial ANOVA, correlations and Chi-square) show that teachers’ epistemological beliefs are rather refined, that there is an effect of professional seniority on these beliefs and that there is a link between refined epistemological beliefs and traditional conceptions of teaching and learning. Finally, teachers’ self-reported practices appear to be insensitive to the discipline being taught. (shrink)