Hey Kiddo
Back in the day, Perma-Press fabrics were all the rage. If you washed them right, you didn't have to iron them. To avoid the wrinkles hot water and spinning can set, the washerlords designed the PP cycle, cooling the wash water before a full spin.
Listen close to what happens in your classroom's A 212 the next time you can. I can't tell about your model, only mine, an 806 from the 70's. It spin/drains most of the water, then refills, then drains halfway, refills again, agitates, and then a full spin/drain begins, and you know the rest, (regular rinse).
Many machines had built-in slow spins for this cycle, while Maytag and others allowed you to select the speed. If teacher is selecting Normal Spin Speed, she is probably using the PP as an extensive or extra rinse cycle, since kitchen towels don't usually have wrinkling issues, unless they're made of pure linen like they were back in the olden days.
Our friend Kelly, whose life we are celebrating tonight was a huge Maytag fan. I'm sure he'd be so happy to have a young man aboard.