The UEB Online website, administered by the NextSense Institute, offers online training programs and competency exams in braille literacy and mathematics using the Unified English Braille (UEB) code.
Duxbury is a braille translation software that can tranlsate braille to print in over 170 languages in either uncontracted or contracted braille. It can produce literary, mathematics, and technical braille.
The American Printing House offers a range of software products to help you learn braille. Like Braille Brain, a free self-paced online braille tutorial in the foundations of UEB. Or UEB Math Tutorial, designed to teach UEB for technical materials with a focus on mathematics.