Thanks, Michael!
I use every angle I know to help people get results with PhotoReading.
Putitascelu,
I do not know what you mean when you say "just using the 3rd step of PhotoReading, that is Photofocus." Are you referring to the Tangerine state? Are you trying to skip the step of turning a page per second?
You absolutely can Preview and activate your math books.
Will photofocus step alone be of any help with math books? I don't know. Maybe. Maybe not. Try it, and let us know your results.
Personally, I don't think so, unless you are a well-seasoned PhotoReader.
PhotoRead and activate several books, and you will better understand how the PhotoReading process works. And, let us know all of your questions along the way.