Yes photoreading maths textbooks can improve your maths skills. Your inner mind has the benefit of 'seeing' how to work out the formulars before you actually try them consciously. This has the benefit of making learning the concept consciously easier.
Activation will be doing the exercises in the maths textbook.
The best method for handling test was provided by Paul Scheele and posted by Dana. Check out this link.
http://www.learningstrategies.com/forum/ubb/Forum8/HTML/000707.html
Alex
