The video shows a woman in a green shirt standing in front of a whiteboard. She is blowing her nose into a tissue and then turns to the whiteboard to write on it. The whiteboard has a mathematical equation written on it, and the woman is writing more equations and notes next to it. The woman appears to be a teacher or a student, and she is speaking to the camera while writing. The video is shot in a classroom setting, and the woman seems to be explaining the content on the whiteboard.