Ключевые слова: abacus, assemble, baby, block, boy, care, challenge, child, childhood, collect, construct, creative, day, development, early, education, fun, game, geometric, geometry, girl, kindergarten, learn, leisure, lifestyle, logic, mathematic, number, object, piece, play, playschool, preschooler, problem, puzzle, school, shape, small, solution, solve, square, structure, study, toddler, together,