In this year's Christmas episode (and the last episode of the year 2000), the kids are snowed in thanks to a freak blizzard and Principal Skinner must call upon his skills as a drill sergeant to keep the kids in line (which doesn't work, as Bart and the others lead a revolution).

!! Tropes:
* BaitAndSwitch: Principal Skinner told the students they'd watch a story about [[HowTheGrinchStoleChristmas a grinchy creature that almost stole Christmas]]. Then he showed "The Christmas that Almost Wasn't but Then It Was".
** Earlier in the episode, the radio announced that all school were closed, and after Bart and Lisa cheered, it added ''except'' Springfield Elementary.
* BigNo[=/=]RuleOfThree: The kids shouted their first no when a snow storm got them stuck inside school; their second when they realized it'd make them miss Christmas; and the last and loudest when Principal Skinner announced his lame Christmas movie could be watched again.
* CallBack: Upon reading his permanent record, Bart read [[Recap/TheSimpsonsS2E1BartGetsAnF "Underachiever and proud of it?"]] and asked how old that thing was.
** Also, Flanders asks Homer whatever happened to his [[Recap/TheSimpsonsS4E9MrPlow Mr. Plow]] business (for those who don't know, an unseasonably warm winter and Komatsu Motors repossessing the plow Homer never made payments on is why Homer doesn't have his Mr. Plow business anymore), and points out that he still has the jacket (which Homer kept around because [[GeekyTurnOn Marge likes it when Homer wears it in bed]]).
* EpicFail: When Homer attempted to make a snow angel, he ended up making a snow devil instead.
** At one point during the movie the kids were watching, the film broke in half and the projector caught fire. Nelson then mocked Skinner, saying he should've gotten a DVD, to which Skinner replied it WAS a DVD.
* ImStandingRightHere: While Homer and Flanders were trying to drive to school to rescue the kids, Flanders once believed they ran over something. Homer said he hoped it was Flanders.
* ScrewThisImOuttaHere: Not wanting anything to do with a school being open during a snow day, the teachers instead attended an "emergency caucus" (which turns out to be a day at a ski resort).
** The hamster after Principal Skinner orders him to chew through his (dodge) ball sack.
* SelfServingMemory: {{Parodied|Trope}}.
-->'''Ned:''' Hey, whatever happened to the plow from your old snowplow business?\\
'''Homer:''' I never had a snowplow business.\\
'''Ned:''' Sure you did -- Mr. Plow. You're wearing the jacket right now.\\
'''Homer:''' I think I know my own life, Ned. ''(proceeds to sing the Mr. Plow jingle)''