NCTE Article: Matthew Brown
In an article on annotation, the author, Matthew Brown, talks about an initial exercise he does with students where they analyze a 'professional' text where someone has already done the annotations in order to provide support to the reader (e.g., a Shakespeare text). His students are asked to generate a list of what the annotations do. Here's an example of their list:
Following some further discussions about why we read, his students are then ready to launch into creating annotations for themselves.