poids (1) science (1) établissement scolaire (1) recherche (1) traitement (1) analyse (1) aliment (1) éducation (1) âge (1) comparaison (1) Education (1) Food (1) Comparison (1) Subtraction (1) Students (1) Sex (1) Science (1) Research (1) Relevance (1) Number line (1) Multiplication (1) Mathematics (1) Geometry (1) Fractions (1) Food (1) Evidence (1) Education (1) Determinants (1) Concepts (1) Comprehension (1)