I had one particularly challenging student who seemed to have trouble grasping a topic between classes. I asked him to bring a small notebook where we could crystallize the concept and he could review until it "clicked". At the end of the semester, I was invited to join some of the students at the Archway Inn (a small bar/grill) along the road back to town. It turns out that the student having the problem grasping concepts was an ex-con who had volunteered to be a drug testing subject. The drugs used damaged his short term memory. The notebook substituted for that damaged short term memory. He successfully completed my course and obtained employment with the new skill set. I was beyond surprised.
That’s amazing and a great way to fine tune learning for someone. I’m so happy that you were able to help this person who truly wanted to turn his life around. Kudos!