"I know this is a community that values education," she said. "That is why you need to know what is really going on behind the walls of Mainland's administrat-"
At that point, Chau's microphone was cut off and school principal Robert Blake told her she would have to leave.
Chau left to chants of "Let her speak!" and "Finish!"
The Georgetown University-bound senior had a dispute with the school over not receiving credit for an honors class she took in her freshman year. She claims that was one reason she finished second in her graduating class, behind a student whose mother is a member of the board of education.
Blake defended his decision to end Chau's speech.
"The student was regressing beyond what we worked with her on, and that's the end of it," he said. "I've met with her on a number of occasions, and I'd be glad to talk with her about her (complaints). This is certainly not the place. In this venue, we are responsible for what is said out here. This is not somebody's front yard."
