The Ebbinghaus forgetting curve is a graphical representation of the forgetting process. The curve demonstrates the declining rate at which information is lost if no particular effort is made to remember it.
A typical graph of the forgetting curve purports to show that humans tend to halve their memory of newly learned knowledge in a matter of days or weeks unless they consciously review the learned material.
What is the Forgetting Curve? The forgetting curve is a psychological model that describes how information is lost over time when there is no attempt to retain it.
In recognition of his work in psychology, the “forgetting curve”—the loss of learned information—is sometimes referred to as the “Ebbinghaus Forgetting Curve.” The graph on the left shows the process by which forgetting occurs.
The Ebbinghaus forgetting curve is a model showing how quickly memories fade after you first learn something. The drop is steep: within the first hour, you lose a significant portion of new information, and after a month, retention can fall to near zero for material you never revisited.
What is the Ebbinghaus Forgetting Curve? Ebbinghaus (late 19th century) showed memory fades without reinforcement. His Forgetting Curve shows how fast information disappears (Ebbinghaus, late 19th century). This idea is key for how learners remember things.
The Forgetting Curve is not an enemy to be defeated, but a reality to be managed. It is the shape of human memory, sculpted by evolution to balance retention with flexibility.
By memorizing lists of nonsense syllables and testing himself at various retention intervals, he discovered that forgetting follows a characteristic curve: memory declines rapidly in the first hours after learning, then more gradually, approaching an asymptote.