In the video, a man is standing in front of a whiteboard, wearing a black t-shirt and a gray beanie. He is holding a marker and pointing to a mathematical equation written on the board. The man appears to be explaining the equation, as he is speaking while pointing at the board. The whiteboard has several lines of text written on it, including the equation that the man is pointing at. The room appears to be a classroom, with a green wall in the background.