Ключевые слова: baby, block, boy, brother, care, challenge, childhood, children, collect, construct, creative, day, education, element, family, figure, fun, game, geometric, geometry, girl, kindergarten, learn, leisure, lifestyle, logic, mathematic, number, object, piece, play, playschool, problem, puzzle, school, shape, sister, small, solution, solve, study, toddler, together,