spectacle (3) Teachers--Training of (3) Reasoning (3) Mathematics (3) Geometry (3) enseignement (2) papier (2) analyse (2) expérience scientifique (2) Context (2) Cases (2) Work (2) Teaching (2) Teachers (2) Paper (2) Learning (2) Comprehension (2) Cases (2) Knowledge and learning (2) Analysis (2) puits (1) vidéo (1) établissement scolaire (1) recherche (1) réflexion (1) planification (1) éducation (1) classification (1) abords (agglomération) (1) Education (1)