The CC license on my own work (the videos) is the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. The Non-derivative option in the license forbids anyone from extracting pieces from a video, or the whole video, to be part of their own works. However, as the license holder, I grant teachers special privileges. Anyone with teaching or training credentials, including Teaching Assistants, may use all or part of any videos in the Digital Oldtimers channel in his/her own work for classroom presentation or other educational purposes. Please email your request to email@example.com along with a short summary of what you plan to do with the excerpt and I will respond with written permission.