Evolution

As an example I would probably use this picture to relate the idea of evolution building on previous "models." Kids know how cell phones have evolved over the years so I would use this as an example to cement the idea.

How I would use Flickr in my classroom!
I could definitely use this to save a lot of room on my schools hard drive. I could transfer all of my pictures I use in notes and on slides to Flickr and be able to share these easier with others as well as find them a little easier.