In the video, a person is holding a blackboard with a chalk equation written on it. The equation is "5 + 9 =". The person then proceeds to write the number "7" as the answer to the equation. The blackboard is held up against a white wall, and the person's hand is visible as they write the equation and answer. The chalk used to write the equation is white, and the person writes in a clear, legible handwriting. The video is shot in a well-lit room, and the focus is solely on the blackboard and the person's hand.