Title: Math from three to seven
Subjects: Mathematics education -- General, mathematics and education -- Recreational mathematics, games, Mathematical recreations, Mathematics education -- General, mathematics and education -- Popularization of mathematics, Mathematics education -- Psychology of mathematics education, research in mathematics education -- Cognitive processes, learning theories, General -- General and miscellaneous specific topics -- Methodology of mathematics, didactics, Congresses, General -- General and miscellaneous specific topics -- Recreational mathematics, Study and teaching (Preschool), Mathematics, Mathematics education -- Educational material and media, educational technology -- Manipulative materials, Games in mathematics education, General -- General and miscellaneous specific topics -- Popularization of mathematics, Mathematics, study and teaching (preschool)