Sửu Nhi, Episode 6.
It is from the online TV Series called Sửu Nhi, Episode 6. (Vietnam 2016) Teacher F/ffff teen students, thrashing with a ruler on their butts, position of standing, in front of their classmates in the classroom, tears. They are rubbing their sore bottoms after that. The lady teacher was testing them on something, but they didn't know the right answer. Vietnamese language https://ok.ru/video/7003492977339 and https://vk.com/video439874628_456239511?list=ln-VYo0sEEm1p1ZWJLGAS