Glossary:Acquisition rate
acquisition rate - the speed of learning, usually expressed in elements memorized per year per minute. For example, if 20 minutes a day result in memorizing 10,000 elements a year, the acquisition rate is 500 elements/year/min (10,000/20). In SuperMemo, the acquisition rate may vary from 100-1000 depending on the difficulty of the material, forgetting index and the stage of the process. Acquisition rate may decrease substantially in the first year only to stabilize asymptotically as years pass by