Like most adults, the educational system that trained you did not allow for differences in individual learning styles and patterns. If you fitted the mold, you did well. If you didn't, academic life was rough. A great deal of research has been done on mapping the right and left hemispheres of the brain. The popular consensus being that the left half is primarily responsible for processing information in a logical, linear fashion as opposed to the right which processes intuitively and spatially.
People process information using both halves but lean toward one side or the other.
Traditional education systems employ primarily left brain techniques leaving right brain processors to make do. Now however, Dr. Doernbach has developed an educational system that uses mental images to help learners remember ECG information easily rather than writing down each and every fact over and over. Since Dr. Dorenbach has been involved since the beginning with this excellent textbook it is required during his ECG courses. The lecture is free but the student is responsible for the purchase of the book. CEUS are available.