More than 2,800 students, all wearing pink shirts, stood up in their seats during an extended time-out in the second period. A smiling crowd cheered them on as they started dancing in unison to the song "Shooting Star" by Owl City.
About 3.5 minutes into the dance, lights in the arena dimmed and the dancing students waved little lights.
The flash mob is part of an annual anti-bullying campaign in B.C.
Click the video above to watch the flash mob in action.