In the video, a man is seen standing in front of a chalkboard. He is holding a piece of chalk in his right hand and a piece of paper in his left hand. The man is smiling and appears to be enjoying himself as he writes on the board. He writes a series of mathematical equations and diagrams, which are visible on the board. The man continues to write and erase the board with the chalk, and his shadow is seen on the board. The video ends with the man turning away from the board and walking out of the frame.