Sheldon, Leonard, and Howard visit a classroom in an attempt to encourage young women to pursue a career in the Sciences. They fail to gain the class' interest, partially because they don't introduce the Sciences in a way that resonates with the students.
When Double D's slip-ups cause people to think he's a bully, Jimmy devises a plan to help Double D prove his innocence and remove his stigma. Double D also illustrates his belief that he is the focus of everyone's attention. While this clip shows all of the cul-de-sac kids watching him, the kids don't necessarily represent everyone at the school.