Teach-O-Matic is an open-source Jupyter notebook that uses AI to create how-to videos from text instructions. It uses GPT-4 to write the script, Suno AI Bark to read the script, Damo Text-to-Video to create the videos, Riffusion to write the music, and Stable Diffusion to create the cover images. The tool is designed to help users create instructional videos without requiring a development environment.