In a Class of Their Own - S15-E4
Continuity mistake: When Barry walks through the door, he has the plank of wood on his shoulder. The camera briefly cuts to Paul before cutting back to Barry in less than a second - but the plank has now completely disappeared.
In a Class of Their Own - S15-E4
Continuity mistake: When Paul tears up the list and starts typing his own list, he says "If Barry's on the list, then I'm gonna be on the list as well." However, when the video footage from Barry's camcorder is later shown on the TV in the assembly hall, in the recorded footage Paul now says "If Barry's on the list, then I'm gonna be as well."
In a Class of Their Own - S15-E4
Continuity mistake: When Barry carries the long plank of wood through the doorway, the door slams, and a shattering glass sound effect and Barry and Paul's reaction suggests the glass window in the door has been broken. However, the camera briefly shows the door over Barry's shoulder - and the glass pane is completely intact.