Studying math with PhotoReading is great. Whenever my kids got stuck during a math assignment, I've always encouraged them to re-PhotoRead their entire textbook. Invariably that loosens their stuck state and gives them the "aha!" they need to keep going.
Very rarely does anyone ever "read" an entire textbook in math. Using the PRWMS you can get the author's reasoning for constructing the text, getting more of the SKELLETON upon which the content being taught all hangs.
When you study a chapter, you should lightly preview (1 min), PhotoRead the chapter, turn to the study problems for mind probing, super read and dip to answer the problems, mindmap the important things to remember, and rapid read to finish.
Slick. Works totally. Next time someone hands you a math text you can say, "ALRIGHT!!! I haven't read a good math text in AGES!" Watch how it blows their circuits.