Rascalhead,
Do you mean you have to read something but you don't know what you have to get out of it? For school say?
If that is the case turn the trigger words you found into questions or even the chapter titles... just put who, what, why, how, when or where in front. That way you get an idea of what you reading the book for and what information should be in the book.
The photoread step takes 2-3 minutes why would you want to skip that? It is most helpful with the superread and dip phase if you PR'ed the book. You use SR & dip to find the answers to the questions you formed and its a lot faster if your inner mind has already "seen it" and knows where you need to stop to slow down reading so that the answers come to your conscious mind.
Layering is like you found answers to a couple of questions but now you got more questions. SR & dip again answering those questions.
Eg chapter heading... Algebra you ask; 'What is algebra, 'How' might become, "How is algebra used"? So you PRed, SRed and dipped and answered those questions and then you think" How do I write algebra? That becomes your next layer.
Basicly my suggestion is if you don't know where to start or are not sure about your purpose turn the chapter headings into questions and find the answers... starting with what seems most important (for study) or most interesting (curiosity).
Hope that helps.
Alex