Great example of combining the physical and the digital. Students took pictures of paper projects and then used Explain Everything to explain their dioramas.
Richard Byrne explains the purpose of participating in Project 365 - an app for documenting media throughout the course of the year. Given his post, the app now makes more sense.
This is a very cool project where students created their own coral reefs and creatures, combined them via Box, and then animated them in PuppetPals (though it could have been Explain Everything).
Cork board type app that allows students to organize research or a project on their ipad. The free version allows for one board. Online, collaborative version would be Wallwisher
Though not free ($1.99), this is almost like an entry level screencasting app where students draw and then tell the story about their drawing. Completed projects can be shared.
Take virtual field trips throughout the National Park with the fotopedia app. Lots of information, resources, and photos to incorporate into other projects.