90-something substitute dances the Charleston for high school class

A substitute teacher in her early nineties showed a class of high school freshman how to cut the rug to the Charleston, a dance that was wildly popular in the 1920s. Don't know the whole story but this video was captured in 2020 by a student who guesses the unidentified nonagenarian was either 91 or 92 years old. What a sweet lady! (Reddit)