Experts say to break a long string of numbers into groups of three. Look at your driver’s license, or a credit card. These long numbers are broken up into groups to aid memory. Remember, too, that we do not visualize numbers, so setting up an association involving consonants is a helpful aid.

via doityourself

1. First, use a pencil or word processor to type, in complete sentences, any fact you think might appear on the test. 

2. Take your printed notes into a quiet room, shut the door, and eliminate all distractions.
3. Look at the first sentence in your notes and read it out loud. Then, close your eyes and say the sentence without looking at it. 
4. Repeat the step above, this time with the first two sentences.
5. Next, try it with three sentences. 

via lifehacker

1. Interest and intent
2. Basic and selective learning
   
3. Visualization and association.
   
4. Exercising the brain.