Trigger words and key words are only anchors to help you remember the rest. Like picking up one link in a chain. Pick the one that will give you the greatest recall and association.
Also remember maths textbooks are ones that can take 50 to 70 hours working with them to fully comprehend using regular reading techniques so you need to expect to spend 5 to 25 hours with them using the photoreading system.
The idea with the photoreading system is that you build comprehension with repeated activation passes. If you're finding it difficult it may be because you're trying to get it all with the first pass. Give yourself a reasonable goal of letting comprehenion happen and notice that it may be the 3rd pass where it begins to make sense and the 4th pass you find you're finished.
Alex
