In the video, a man is standing in front of a blackboard. He is wearing a black suit and tie, and holding a stick in his hand. The man is speaking to the camera, and then turns to the blackboard and begins writing on it with the stick. The blackboard is empty, and there are no other objects or people visible in the video. The man's movements are deliberate and focused, and he appears to be explaining something as he writes on the board. The lighting in the room is bright, and the man is well-lit, making it easy to see his actions and expressions. The video does not contain any sound, so it is unclear what the man is saying.