CO-OPERATIVE NAVCHANNYA CHILDREN OF THE OLDEST PRE-SCHOOL ELEMENTARY SCHOOL AND YOUNG SCHOOL STUDENTS IN ELEMENTARY MATHEMATICS AND ECONOMICS TO THE METHOD OF MODELING IN THE MINDS OF THE EXCLUSIVE HISTORY Journal title: Збірник наукових праць «Педагогічні науки» Authors: Н.П. Тарнавська, Н.Ю. Рудницька Subject(s):
