Definition
The proportion of presented material that a learner remembers and can recall after a given period. In instructional contexts, it is used as a measure of how effectively a teaching method transfers information into durable memory.
Plain English
How much of what was taught the student actually remembers later. A higher rate of retention means more of the lesson stuck.
Context Anchor
Seen in instructor training when comparing teaching methods, such as lecture, discussion, demonstration, and guided practice.
Derivation
From Latin retinere, meaning 'to hold back' or 'keep.' Retention is what the mind holds onto after the lesson ends. The 'rate' part simply expresses it as a proportion or percentage.
Why Pilots Care
Flight instructors choose teaching methods partly based on how well students retain information. A method with a low rate of retention may cover material quickly but leave gaps that show up later in the cockpit, when the student needs to recall a procedure under pressure.
Intuition Check
Do not read rate here as speed only. In this context, it means the measured amount or proportion of learning that is remembered over time.
Example Sentence 1
Studies show that pure lecture has a lower rate of retention than methods that combine explanation with hands-on practice.
Example Sentence 2
Hands-on practice raised the rate of retention compared with lecture alone.