Continuity mistake: When Uncle Rico hands Trisha and Summer the "Bust Must" fliers, at the end when they show a close up of them reading it, there are two sets of hands holding up the paper. However, in the shots both before and after, Trisha is only holding up the flier with her right hand.
Continuity mistake: When Napoleon, Grandma, and Kip are all in the kitchen area, in the shot of Grandma leaving, the container is nowhere close to the counter top edge and next to what looks like a phone book. Two shots later, in a close-up of Kip, the same food is now close to the counter top edge with the phone book nowhere to be seen. As the two argue in different shots, the container of food moves back and forth. On top of this, the phone book that was there in the original shot has mysteriously disappeared from every subsequent camera angle.
Continuity mistake: When Kip and Uncle Rico are first shown talking in the restaurant, the little brown cups by his cup are sometimes next to it and sometimes behind it. (00:25:30)
Continuity mistake: When Rico stops at the farmhouse while taking Napoleon to get his prom date, watch the passenger-side outside mirror on the van. While driving, it is positioned at a normal angle to see straight back from the driver's vantage point. When Rico gets out at the farmhouse, the mirror has been turned substantially and now sticks straight out.
Continuity mistake: Tina is not tied up to the fence, when Napolean first begins feeding her.
Continuity mistake: When Kip goes to the bus station to meet LaFawnduh for the first time, you see LaFawhduh getting off the bus. But it is obvious that she is not the last person to be getting off the bus. As she's standing in the doorway of the vehicle, there is somebody standing directly behind her who's wearing a white shirt. The scene quickly changes to Kip & then back to LaFawnduh, but now there is no one standing behind her - and you are now able to see the bus driver seated there. (01:03:05)
Continuity mistake: When Napoleon asks Don for a "Vote for Summer" button, there is a boy in a checkered blue shirt that walks by Don and off the screen. Then when Don hands Napoleon the button, the same boy is back, but now he is walking by Napoleon. (00:58:15)
Continuity mistake: In the scene where Napoleon tells Uncle Rico to leave, Uncle Rico is throwing footballs in front of the video camera. There are three footballs; two on the ground and one in his hand, yet he throws four.
Continuity mistake: When Uncle Rico tells Napoleon about the sale in Bemida the jar/ glass of milk was not lifted up before the shot of Rico putting it down. It doesn't seem like he had picked up the jar before then because we can see it in Napoleon's shots.
Continuity mistake: When Napoleon calls Kip from school, you see that he was grating cheese for nachos. When the view goes to Napoleon and back, you see that the position of the block of cheese and amount of cheese on the chips changes. This happens multiple times throughout the scene.
Continuity mistake: When Napoleon is talking to Deb in the cafeteria, the drink is behind the plastic bag. Then when Napoleon notices that it's 1%, the drink is in front of it. (00:20:20)
Continuity mistake: During the opening scene on the school bus, they drive past a neighbor's barn as soon as they pull away from Napoleon's house. There was no gap in time because the dialogue is continuous, yet later when Napoleon walks out his front door to feed Tina, the closest neighbor in that direction is far off in the distance.
Continuity mistake: Napoleon is drawing lines from the back of the unicorn in class. When the teacher calls him up, it flashes to his notebook and the drawing but no lines on the rear of the unicorn. (00:05:00)
Continuity mistake: At the very end, when Napoleon asks Deb if she wants to play tetherball, the sprinkler system behind her disappears.
Continuity mistake: In the opening scene, when Napoleon first gets on the bus, he puts his hand on the seat in front of the seat that he's going to sit in, right by a kid's head, but in the next shot, the kid is gone. (00:04:15)
Continuity mistake: After Pedro puts the cake down it moves closer to Summer's door and slides across her doorstep. The envelope under it also disappears and reappears. (00:26:35)
Continuity mistake: When Kipp places the bowl by the tire, the tire is to the left of the bowl with the curb behind it. When a full shot of the van is shown, the view is now opposite with the curb in front of the bowl, but the tire is still to the left.
Continuity mistake: When Napoleon throws the fruit on Uncle Rico's van, it hits the windshield and leaves only splatters of juice on the windshield, but when Rico stops the van, the windshield has several chunks of the fruit on it.
Continuity mistake: When the class president candidates present their program and perform some skit, there are several shots of students sitting in the auditorium. Keep your eye on Deb. She sits in the third row on the left side, but in the first and second shot she isn't there. Then she appears, disappears and finally reappears and changes her position by one seat.
Continuity mistake: When Uncle Rico takes out the ship from the box, the box is near the woman's arm. In the next shot, when she tells her husband "I want that" the box is nowhere to be seen. (00:36:50)
Answer: Because it is such a small town that the school system can not afford buses for grade level so they have to share them, plus it has comedic value as well.
pross79
Small town schools are usually K-12. The other older "cooler" students drive to school or get ride with their friends.