Old Substitute Teacher Dances the Charleston Meme Template

A white-haired woman, brown cardigan over a striped blouse and slacks, kicks out her heels and swings her arms in a brisk Charleston, then bends at the knees and shuffles to a stop.

Billed as a substitute teacher showing her class the dance; the clip plays over music with no talking.

Unexpectedly good moves from the last person you'd expect.

• the sub on the last day before summer