Explain Everything
Explain Everything is a very power tool that can be used for all sorts of activities. In this instance we suggest that it's a very simple and practical way to create animations. Only limited by your skill set. You can add a green screen back ground and combine this with Doink or iMovie on your Mac.
iPad Apps
Web Pages
Blabberize
This webpage lets you simply make a talking image. Select the image, add a mouth and then record what it's going to say. The mouth is great as it can be customised to be the shape and location you would like it to be. It's a bit of a mission to download, as the site works in flash and the file then has to be edited to be an mpg. but gives a cool outcome.
Voki
Now an iPad app as well as a website this tool lets you select an avatar, animate it, record a voice for it, and select a background. It's great to enhance classroom instruction, class engagement, and lesson comprehension.