Mingo,

There are a lot of podcasts and other books on line nowadays.

Google books is another alternative.

Also, there is very good voice recognition software these days and she can learn to speak very fast. I have a coworker whose carpal tunnel syndrome is so bad he uses VRS for work - and he is a program manager.

Math can be done in ones mind for the most part. It takes a bit of work to get to where you can fit it all in your head but its worth the effort.