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 substantially decrease in the period of the first year; later it stabilizes asymptotically)