In the last class, we learned about a viewpoint. Rab showed us his bag and explain about it. And then, he separated us into four groups. Two of them considered that what are good points and the rest thought about bad points of it. After that, we exchanged our opinions. Three of them received views which they did not hit upon . It showed that we have tendency to perceive one side. Mass media also try to make people arrive at what they expect. We need to be skeptical.