According to Piaget's Cognitive theory, the sequence of development has been categorized as:
Sensorimotor stage, preoperational stage, concrete operational stage, formal operational stage. Sensorimotor stage, preoperational stage, formal operational stage, concrete operational stage. Pre-operational stage, sensorimotor stage, formal operational stage, concrete operational stage. Formal operational stage, preoperational stage, sensorimotor stage, concrete operational stage.