Answer:
Stages of development:
former operational stage
Step-by-step explanation:
In Piaget's theory, the stage of cognitive development which starts from about age 12 during which people begin to think logically about abstract concepts. stages of development can be said to be the different phases of the ways of continuity and change in human capabilities that is eminent throughout life, involving both growth and decline.
Jean Piaget lived between 1896–1980. He a theorist who studied childhood development.He stated that thinking is a core area of development and that children are naturally inquisitive. He gave different areas of development ranging from different ages. in the formal operational stage,Children utilizes abstract reasoning and thinking. it is ranges from the 12 years upward who has potential for mature moral reasoning.