Using spaced review to combat the forgetting curve!
1. Impact of spaced review on
the forgetting curve
The reason why continuous learning strategies
are imperative in learning and skill building!
Impact of spaced review by Iida Hokkanen is licensed under a Creative Commons
Attribution-NonCommercial 4.0 International License.
2. The forgetting curve
0
20
40
60
80
100
%Contentremembered
Time after lesson
Immediately 24 h 1 week 1 month
Forgetting
without revision
The rate of forgetting is fastest immediately after the training!
Impact of spaced review by Iida Hokkanen is licensed under a Creative Commons
Attribution-NonCommercial 4.0 International License.
3. 0
20
40
60
80
100
%Contentremembered
Time after lesson
Immediately 24 h 1 week 1 month
Review 1
Forgetting
without revision
Forgetting curve + Spacing effect
Immediate review gives the potential to forget less
AND learn more!
Impact of spaced review by Iida Hokkanen is licensed under a Creative Commons
Attribution-NonCommercial 4.0 International License.
4. 0
20
40
60
80
100
%Contentremembered
Time after lesson
Immediately 24 h 1 week 1 month
Review 1 Review 2 Review 3 Review 4
Less is forgotten after each spaced review!
Forgetting
without revision
Forgetting curve + Spacing effect
Impact of spaced review by Iida Hokkanen is licensed under a Creative Commons
Attribution-NonCommercial 4.0 International License.
5. Example continuous learning strategy:
Impact of spaced review by Iida Hokkanen is licensed under a Creative Commons
Attribution-NonCommercial 4.0 International License.
6. Sources:
Thalheimer, W. (2006, March). Spacing Learning Over Time. Retrieved May 19,
2015, from http://www.worklearning.com/catalog/.
Figures adapted from D.J. Teichert DJ (2010). http://www.byui.edu/learning-
and-teaching/articles-and-videos/articles-and-videos/lest-they-forget
Cumulated knowledge of Iida Hokkanen.
Impact of spaced review by Iida Hokkanen is licensed under a Creative Commons
Attribution-NonCommercial 4.0 International License.