Recall that Bridgeman (1981) conducted an experiment with ten-year-old children, half of whom had previously had two months' experience in a jigsaw classroom. In this experiment, she showed the youngsters a cartoon in which a little boy waves goodbye to his father at the airport, receives a package from the postman, and bursts into tears upon finding out that it contains a toy plane. Children who had two months' experience in the jigsaw groups were more likely than the control group to say that the .