All papers in English Here are link to all the papers in English: Jérome Proulx (2022). On three kinds of mathematical activities, and what this means for schooling Jean-Francois Maheux (2022). On possibilities of mathematical activities from the history of mathematics Jean-Francois Maheux (2019). Students and difficulties: some thoughts from Seymour Papert Frédéric Gourdeau (2018). Mathematical Preparation for Secondary-Level Mathematics Teachers: Interweaving Perspectives of a Mathematician and a Mathematics Teacher Educator Jean-François Maheux (2017). Proulx on Hattie: Epistemological read on a pedagogical quest Yasmine Abtahi (2015). Tool-mediated zone of proximal development Jérome Proulx (2015). Going beyond validity criteria in mathematics education research: towards the generativity of a research study