Continuity: When Bart hands Ms.Krabbappel his final test, there are some shots going back and forth between their faces. During the first shot looking at Ms.Krabbappel, you can see a window behind her, and outside the window, there is no snow, even though there was a whole lot of it yesterday. During the next shot, the snow IS there. As the camera goes back and forth, the snow disappears and reappears.

Continuity: Bart's 1st grade drawing of cat on the fridge changes across the episode, especially its ears and whiskers.

Continuity: When Martin does his book report, on the blackboard it says 'An afternoon with Ernest Hemingway : Reflections by Martin.' But when Bart goes up to do his report, the blackboard is clean.

Continuity: Just before Bart's flashback, his shirt is orange, and the chair he's sitting on is blue. But in this episode, his shirt is a paler shade of orange and the chairs in the classroom are red.

Other: When Bart enters the school bus at the day of history test, we see close-up of his "Early American History" book open about in the middle, on the page saying "Chapter 1".

Revealing: When there is a zoom in of the house just before Bart gets up late, it has the old arch-shaped windows, but in the rest of the episode it has the normal windows. It's obviously a screen from Season 1.

Audio problem: When Bart calls Milhouse to get the answers to the history test from him, Milhouses voice sounds a lot different from his usual voice. It sounds more like Mrs. Krapabbel's voice.

Continuity: When Lisa shows her exam to her family, the "a" note keeps changing from being circled in red and in a red round.