When I was a kid there was always one given on the last day of school. Your math teacher would let you watch the classic Disney production, Donald in Mathmagic Land.
Watch it? This was no small thing. Step one: procure VHS tape of said film. Step two: wheel television down from the “AV room” on its cart. Gotta be one with a VCR too. Step three: hope to God the VCR works and doesn’t just flash “12:00” at you and laugh. Step four: watch said tape. And remember to rewind.
Nowadays it’s much easier. Search the thing up on youtube and you’re watching it on any screen you like, basically for free. But you’ve still got to have a math teacher who’s willing to do it.
Guess who the math teacher is now?