Ключевые слова: abacus, addition, background, basket, build, child, childhood, cilinder, class, classroom, color, construction, count, counting, creativity, desk, educate, education, educational, enjoy, equipment, exercise, fun, game, geometry, happy, homework, kid, learn, material, math, montessori, number, numbers, parenting, pebble, play, playground, preschool, red, school, set, shape, stack, stone, substraction, teach, teacher, toy, wood,