Welcome to the forum. What you want to do is learn the information from the books and papers.
With photoreading you only need to PR the book once, more often if you feel so inclined. Rest assured, it does go into the inner mind. What you need to to is activate the book/s some of it you'll do during class other times you'll want to sit down and draw a mind map. This is achieved during the activation session. 3 to 4 or more, 30 minute sessions of asking questions (formed from your trigger words). This brings it to conscious awareness. What you have photoread can show up in the most unusual times and sometimes unexpected ways. For me it happened when I was searching web sites for information... after doing a search I open all the sites that looked promising and just PR'ed them to see if they had any information on the topic I was searching. I found so much other information flooding back later. The method I used was pretty much like photoreading a book; scrolled the pages and knew if the info I was searching for was there or not. If I didn't find anything I just closed that window (I never use the back button
)and went onto the next one. When I found some information in that site I scanned it more slowly to determine if it matched my criteria. Since I knew so much stuff that I didn't know about before my searches I must have plonked it into my inner mind and the mind probing questions turned out to be questions posted on the forum. So I can assure you it is in your inner mind and just needs to have a reason to be drawn out. That's why the manual activation techniques are so important. They help you build more confidence.
In following the steps for photoreading and drawing a mind map during activation you have a visual aid to recall the information from the books and papers so that when you come to a test you can quickly review the information and be surprised how much it brings back to memory even stuff that you didn't note on the MM can come flooding back.
Have a slow read of page 85 to 87 of the photoreading book... it tells you in detail how to use the photoreading system for studying.
If this brings more questions to mind just ask on the forum 
Alex