Many years ago I used to do research in mathematics education. I gave this up a long time ago. If you are interested in the stuff I used to research into then below are a few concept papers I wrote.
The basic idea of my research was that of reading-to-learn mathematics. This had to do with .... (to come)
On Another Approach To Reading-to-Learn The Mathematical English Of Mathematics Texts:
Text Levels (34p, 131Kb)
to come