Animoto
http://animoto.com/education/classroom

Make awesome videos using photos, pictures, music and text.

You can get a free educator's account, but you must apply for it. It can take a few days to a week until you get an email with your approval.

Great way to display class work for parents to view on your webpage.

How to use Animoto in education

My Example:


Make your own slideshow with music at Animoto.