It's wrong to laugh at less intelligent people.
Al is in class listening to the history lesson and his classmate Gina is called on to answer a question, and she doesn't know it.
Al wants to react to Gina's inability to respond.
Al see's Gina struggling, so he chimes in to help her understand.
Al thinks it's funny that Gina didn't know how to answer such an easy question, so he bursts out into laughter.
Gina feels good to have a classmate help her out, and she learned something new.
Gina feels embarrassed and leaves class feeling depressed.