The video shows a classroom setting. A man is sitting on a desk facing the camera. He is wearing a blue shirt, glasses, and black shoes. There is a projector screen behind him that displays the general form of the DID model. A student with long black hair is sitting in a blue chair in the foreground, facing away from the camera. She is wearing a white shirt. There is a desk with a laptop on it next to the man. There is also a whiteboard with a graph drawn on it.