a man standing in front of a chalkboard

Prompt 1: a man wearing glasses sits in front of a chalkboard and explains a math problem. the problem is displayed on the chalkboard, and he uses a pointer to indicate the numbers and the steps of the problem. he explains the problem clearly and slowly, making sure that the viewers can understand it. he draws graphs and diagrams on the chalkboard to illustrate the concepts. is useful for anyone who wants to learn how to solve a math problem or improve their math skills.

Prompt 2: a man wearing glasses who is standing in front of a chalkboard and talking to the camera. he then proceeds to write a series of mathematical equations on the board, which he explains to the camera. the man continues to write and speak to the camera, providing detailed explanations of the equations. overall, is an educational and informative piece on mathematics.