temps (durée) (1) enseignement (1) enquête (1) enseignement secondaire (1) établissement scolaire (1) gestion (1) information (1) analyse (1) environnement (1) éducation (1) comparaison (1) Angleterre (1) Flandre (1) Singapour (1) Education (Secondary) (1) Education (1) Development (1) Comparison (1) Parts (1) Parts (1) School principals (1) Views (1) Time (1) Teaching (1) Teachers (1) Suppers (1) Students (1) School children (1) Public schools (1) Percentage (1)