Answer: perspective-taking.
Explanation:
The jigsaw classroom is a kind of cooperative learning where kids with different ethnic backgrounds are meant to cooperate to learn a lesson.
It has been proven that cooperative peer exchange promotes perspective-taking and that those abilities learned in jigsaw classrooms are often generalized to use in different situations. In this case, the kids who have gone through this type of learning, show a better capacity to understand the postman´s perspective given that he´s missing important information from the context.