Audio problem: The first time all friends are in the bedroom together Charlie says "Unless you're a genius like Meeks." Meeks replies "He flatters me so I'll help him with Latin." Halfway through this sentence the shot changes to a sideway shot of meek and his mouth isn't moving.
Audio problem: In the scene where Todd is in the principal's office with his parents and the principal, and is is being asked to sign the paper, during the shot of Todd looking at the paper, his father's voice says," I've had enough, just sign it", and it is very obvious that line was added in because it sounded like it was very distant or over a radio or something.
Audio problem: In the classroom when Keating says, "Armies of academics going forth measuring poetry.", it is obvious that this is dubbed over because his mouth doesn't move correctly with the words.
Audio problem: When Chet is pummeling Knox, Chris pulls him off yelling "Stop it!", but her mouth doesn't move.
Chosen answer: It is a classroom exercise. He is being followed by pupils and is reinforcing their latin vocabulary by taking them on a tour of the garden and showing them the things that the words actually relate to (edificium = building, flora = flower etc.) This contrasts with his earlier behaviour when he simply had them mindlessly recite conjugations (amamo, amamas, amabat). The point is that this illustrates how the Latin Master has been affected by his contact with Keating and has become a better teacher as a result.
Oscar Bravo