How to use an iPad to add voice comments to grading
The app they’re using is called iAnnotate PDF, which, well, is an annotation app for PDFs. I normally wouldn’t recommend an app that costs $10 [foreshadowing], but in this case it’s absolutely worth every penny. Imagine having students submit work via a Dropbox folder, then annotating and sending it back to them via email. Simple, paperless, and stronger feedback than simply writing.
(by dbward2119)

