When students need support for lectures and notes, take a look at AudioNote ($4.99) and AudioNote Lite (free) for the iPad.
AudioNote allows notes to be handwritten in pen mode for drawings and notes, or typed with the keyboard.The lite version can record a lecture and track notes written during the session and sync them to the recording. Tap anywhere on your notes and go to playback and it will replay the lecture recording where you tapped.
The highlight feature re-traces letters in blue as the recording plays so you are reviewing and tracking at the same time. You can email your notes and wi-fi share with the upgraded pay version.
You can buy a Livescribe pen for as low as $99.99 to use with real paper, but you can use this lite app for free with your iPad and get many of the same options open to you - for free. Real pens and real paper are great to have for certain settings, but the tools are there for you with synchronized notes and playback on an iPad.
This tool can be a real support for students with traumatic brain injuries and students that need help with organizing and memory. Check it out.
Here is a video review of Audio Note:
All the best!