Which of the following is NOT one of Piaget’s stages of cognitive development relevant to children?

The correct choice highlights that the "Abstract operational stage" is not one of Piaget's established stages of cognitive development. Jean Piaget, renowned for his work in developmental psychology, identified four specific stages of cognitive development: the sensorimotor stage, which occurs from birth to about 2 years and involves learning through sensory experiences and manipulating objects; the preoperational stage, from ages 2 to 7, characterized by the development of language and symbolic thinking but limited logical reasoning; the concrete operational stage, from ages 7 to 11, during which children begin to think logically about concrete events and understand the concept of conservation; and the formal operational stage, beginning around age 12, where abstract reasoning and hypothetical thinking emerge.

The mislabeling of “Abstract operational stage” instead of “Formal operational stage” illustrates a common confusion but emphasizes that this concept is part of Piaget's theoretical framework, albeit under a different name. This understanding is crucial in recognizing how children progress through cognitive development and apply age-appropriate learning strategies.