âge (2) Development (2) Age (2) Age (2) temps (durée) (1) statistiques (1) spectacle (1) établissement scolaire (1) traitement (1) gestion (1) information (1) analyse (1) environnement (1) effet (1) couleur (1) Orthography and spelling (1) Children (1) Methods (1) Identification (1) Statistics (1) Primary school teachers (1) Teenagers (1) Writing (1) Work (1) Variations (1) Time (1) Teachers (1) Students (1) Statistics (1) School children (1)