The Pink Tower is a quintessential Montessori material used to teach children about size, order, and spatial relationships. Comprising ten pink wooden cubes of varying sizes, this activity helps develop visual discrimination, fine motor skills, and concentration. Children stack the cubes in sequence from largest to smallest, fostering an understanding of dimension and early mathematical concepts. It also promotes problem-solving abilities and is a staple in Montessori classrooms for sensory and cognitive development.