Understand that Piaget's theory of cognitive development describes how children's thinking evolves in stages as they grow.
Recall the four main stages in Piaget's theory: Sensorimotor, Preoperational, Concrete Operational, and Formal Operational.
Identify the correct chronological order of these stages based on age and cognitive abilities: first Sensorimotor, then Preoperational, followed by Concrete Operational, and finally Formal Operational.
Recognize that the Sensorimotor stage involves learning through sensory experiences and motor actions, typically from birth to about 2 years.
Note that the Preoperational stage (around 2 to 7 years) involves symbolic thinking, the Concrete Operational stage (7 to 11 years) involves logical thinking about concrete events, and the Formal Operational stage (from about 12 years onward) involves abstract and hypothetical reasoning.