In the video, a man is writing on a chalkboard with a piece of chalk. He starts by writing the number 9, then writes the number 6, and continues writing numbers. The man is solving a math problem, and he writes down the numbers 5, 4, 3, 2, and 0. The video is shot from a side angle, and the man is wearing a blue shirt. The chalkboard is black, and the chalk is white. The man's hand is steady as he writes, and he appears to be focused on solving the problem.