I think that, just because someone doesn't comprehend what is taught, it doesn't necessarily mean that they have a disorder or learning disability, but rather that the teaching style/method doesn't work for their learning style.
Amen.
Each student is different so should be the method used to teach that student. There are many methods or styles of teaching.
Pancakes, I graduated from secretarial college or was a tech school at the time, has since become a community college, but anyways, I had to do four semesters of shorthand. Four levels. I had to repeat all four levels. I struggled. Many a course in college was repeated.
In starting new jobs, I always was a slow learner. Took to carrying a steno notepad with me to take notes. I referred to those and as I learned the steps and tasks, the pages were torn out of the notepad and thrown away.
Something that worked for me in many of my college courses - I went to the library or the college bookstore and got elementary level books (I learn by lists, pictures, colors) and pulled from that. It helped. Keeping it simple worked. After all, much of what I had to learn or sit through was just to pass a required course on the pathway to graduating from college. Many of the courses I took I never used after I graduated. I did what I had to to get through the course. I also organized my material or what I was learning. I webbed ideas and thoughts from lectures. I used colored pencils. Chapter outlines in the textbook were a big help. Give me the overall picture or synopsis of what I am to learn and then fill in the blanks with the lecture.
Also google can be a great tool too.
I wish you well in your studies.
When I was in the classroom teaching (taught K-8) loved seeing the students "get it." Loved tutoring students after school too.
Again, I wish you well. Tomorrow is another day.