Emma Degerstedt

When Sheldon meets Dennis, a 15-year-old physicist who is clearly much brighter than he is, his confidence is so badly shaken that Leonard agrees to help him discredit the precocious teenager's research.

Addie Singer looks forward to unveiling her new image on the first day of seventh grade.

When Zach finally decides to open up and tell her that he is in love with Geena, Addie is afraid that it may be the end of their perfect and long friendship. It might be difficult to stay friends after so many emotions.

Samantha bumps into a former boyfriend of hers while on a walk, who then proceeds to run away from her; Samantha later learns from Andrea that he has a restraining order against her; Samantha feels the need to reconnect with her father.

Addie draws up an honesty policy for her friends.

Addie is insecure about her hair on school picture day.