Using pictures in your teaching

Creative Commons is a non-for-profit organization for sharing and collaboration. It is a place to advise around copyright issues either if you are creating for sharing or want to use. They have a very informative website for both people that wants to share and those who wants to use creations. https://creativecommons.org/

If you want to do a "Creative Commons image search" you can do a regular Google Search. Hit "images" and then "tools" . At "user rights" you can choose your choice of available images.