There are six principles of sticky ideas according to Dan and Chip Heath, authors of Made to Stick. Sticky ideas are ones that we can plainly understand, clearly remember, and easily retell. When teachers and students make educational media, whether visual, audio or video, we want them to be sticky. Let's look at examples so we can make our own (and our students') ideas stick.
Simple Video Tools
Finding the right image can be a challenge. You may need to refine your search by entering synonyms or crafting a visual metaphor (thanks Alan Levine).
Finding Videos for Students
Of course you know about finding videos on YouTube. Also try Learning Bird. It has a library full of videos, all made by teachers. The videos indicate which grades they are for, include state standards, and can be sorted by subject.