This might be useful for you as an instructor as you will be forced to adapt your teaching style to suit this particular student.
Dyslexia Learning Styles | Being Dyslexic
An introduction to how focussing on particular learning styles can help dyslexics.
Learning should be: structured and multisensory - this bypasses the organisational difficulties in the brain; integrating all learning pathways helps to ensure automatic memory.
Overlearning is vital: practice till automatic: adults with dyslexia have short-term memory difficulties.
Use a variety of ways to practice spelling: let adults choose the ones, which work best for them.
Work on one problem at a time.
Adults with Dyslexia often "overload": Tune into this and you'll save a lot of time!
Use Right Brain skills: like imagination, patterns, colour and visualisation to augment learning.
New Information needs to be given more than once: even if the adult appears to understand it - dyslexics often have distractibility and short-term memory problems.
Dyslexics often find it difficult to generalise.
Develop a holistic approach: another right brain strength - adults with dyslexia like to know the whole and then are happy to tackle the part.
Work to the adult's strengths: avoid reinforcing failure, e.g., seeing incorrect spellings or making him do dictation or words he cannot spell.
Remind dyslexic, if necessary, of a spelling strategy for as long as they need you to: that's "not cheating, but learning".
Give time: for the dyslexic to organise their thoughts.
Encourage use of technology: spelling dictionaries, memory aids, to get round the problem - why rub two sticks together when you can throw a switch!
Present learning material: in a variety of different ways to help student generalise - some dyslexics find this difficult.
Adults who are dyslexic: need to concentrate much more than other students because of their difficulties.
By recognising and discussing the nature of their difficulties with them: we can enable them to come to terms with the condition, put it in perspective and take control of their learning.
Can't help thinking that this could be an interesting journey for both of you and one in which you could learn as much as your student does. Never a bad thing for a professional instructor.
Hope it goes well and it might be worthwhile posting updates - it's always nice to hear about triumph over adversity.
Best of luck