Here is a description of the video: The video shows a man in a classroom setting. He is light-skinned with dark hair, and a trimmed beard. He is wearing a peach-colored bucket hat with a white Nike logo on it, a light tan jacket with the hood up, a yellow shirt with black designs, black pants, and white sneakers. He walks from left to right across a raised platform. There is a green chalkboard behind him with writing on it in Chinese and English. A projector screen is on the left side of the frame. A podium with a computer on top of it is to the man's right. There is a student in the lower left of the frame, and a desk with papers and a cup on it to the right. The room appears to be a typical classroom.