Images, copyright and Creative Commons. A very comprehensive plan for teachers/teacher librarians that gives steps on how to teach this topic in their school. There are links, videos and images that could be used as they are presented of easily modified to suit the school or classes situation.
A curated list of websites that offer free (legally!) photographs that you can use to draw and paint form. The photographs come from amateur and professional photographers who dedicate their work either to the public domain or under a Creative Commons Attribution license. There are some truly stunning images to choose from. Enjoy!