Search the Teaching Materials
Students are familiar with image and video searching on the Web, but when they look for images associated with their topics, keyword strategies become important as people describe images in a myriad of ways.
Students should still evaluate the visual resources they find, just as they would evaluate a website. For instance, a Google image search for "school lunch program" retrieves everything from pictures of tater tots, to government graphs, to clip art of fruits and vegetables. Students may need to read the site on which the image appeared to get more context about what it depicts, where it came from originally (if it's not the author's) and if it's relevant to what they're looking for.