MyClassNote, is very usefull. Instead of taking notes, you just take a picture of the blackboard. It´s that simple. You can create a folder for each subject fx. math – and your math “picture notes” will be stored inside that folder. You an easy find and open the folder, and see all your notes. You can take new notes, change name and delete folders again. A very simple and easy-to-use app for Iphone and Ipad.