"If I'm reading something for school, for instance, the purpose I articulate will be to read and understand the text well enough to teach it and if necessary generate class discussion." I can see why you are having problems. To me that is not a purpose. It is too general. You need to be very specific as to what you want. Speaking of specific; be specific with us give us a book you used for school the name of the book and what your purpose was for the book. If you used the above mentioned so called purpose i can see why you are having problems your mind needs to know what you want to accomplish.
Photoread4me
