I teach online classes in the evening for students wanting to become a Certified Professional Coder. There is alot of information given to students in a short period of time each term so it is very important that the students create some form of retaining this information. One thing that I have done in the past and seems to work really well is to have students make flash cards. Each term this can be done, for Medical Terminology, Anatomy and Physiology and so on. Then when the students are ready to sit for their examination they can utilize their flashcards. Here students are seeing the same information more than once.