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Later, while studying for the test, Ben decides to do the assigned reading from his textbook. He wants to insert additional notes into his lecture notes on the same material, so Ben opens his notes to modify them. He goes over the notes, and inserts a few new facts that he forgot when he was taking the notes originally.
Design 1
In this design, the user's notes are stored in a strict hierarchy corresponding to school years and classes. Inserting images is done by taking the pictures on a smartphone and uploading them into your notes.
New users will be presented with a standard account creation/login page. Once they have created their account, they see the notes storage, which is organized into sections with years and classes.
Image of hierarchy with nothing created yet
On initial login they must either select the pre-populated year or create a new one. Once the year is selected, they can create a class, and then create notes for that class. This is not analogous to a standard file-system hierarchy in that you cannot create loose notes: they must be associated with a class, and classes must be associated with years.