Brooke Sorenson

Brooke Sorenson (Born on July 13, 1999) is an American actress.

It's a Matter of Principal
In Season 2, Episode 15 entitled "It's a Matter of Principal", Stefanie (portrayed by Brook Sorenson) takes off her right shoe and hits a robotic principal with it, and then she runs away from the hallway wearing only one shoe. In another scene, she takes off her right shoe again to attempt to attack another kid and then she is seen holding her shoe.

A video of the action can be seen here: https://www.youtube.com/watch?v=D_qlbJMhioo&t=4m12s