Answer:
formal operational stage
Explanation:
Formal operational stage -
It is the very fourth stage of the Jean Piaget's theory of cognitive development .
This stage is around the age of 12 until turning an adult .
During this point stage , the thinking and development process becomes exaggerated and advanced .
The children get through the theoretical and practical concept very well and comes up with innovative and better ideas . Skill development plays a very important role at this phase of growing up .
At this very stage children tries to explore many new things and can even sometimes get to start some bad habits of smoking and drinking .
hence , the child need to be handled with very care and love at this stage of growing years .