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Spaced Repetition SystemsHow to remember everything you learn?
Magnus Ramstad Dahl Life Hackers Singapore HackerspaceSG 09.11.17
Outline
• History of SRS• Hermann Ebbinghaus
• Piotr Wozniak
• Anki
• How to use SRS/Anki
• How I use SRS/Anki
• Getting started
• Demo
• Resources/further reading
Hermann Ebbinghaus
• made up lists of nonsense syllables and measured how long it took to forget and then relearn them.
• (Example of the type of list he used: besdek fel gup huf jeik mek meun pon dausdor gim ke4k be4p bCn hes.)
• Forgetting curve
• The Spacing Effect
The Forgetting Curve
The Spacing Effect
“Ebbinghaus showed that it's possible to dramatically improve learning by correctly spacing practice sessions. On one level, this finding is trivial; all students have been warned not to cram. But the efficiencies created by precise spacing are so large, and the improvement in performance so predictable, that from nearly the moment Ebbinghausdescribed the spacing effect, psychologists have been urging educators to use it to accelerate human progress. After all, there is a tremendous amount of material we might want to know. Time is short.”
Low tech version: Flashcards
• Sebastian Leitner developed the Leitner System in the 1970’s
Piotr Wozniak - The Algorithmic Man
When to practice?
“SuperMemo is based on the insight that there is an ideal moment to practice what you've learned. Practice too soon and you waste your time. Practice too late and you've forgotten the material and have to relearn it. The right time to practice is just at the moment you're about to forget.
Unfortunately, this moment is different for every person and each bit of information. Imagine a pile of thousands of flash cards. Somewhere in this pile are the ones you should be practicing right now. Which are they?”
Piotr Wozniak’s Supermemo
Anki SRS
Anki interface
5 days and 5 minutes rules
SRS or cramming?
Don’t use SRS if you need information sooner than 5 days
Minimum requirement for SRS (amazingly low)
SRS, if in your lifetime you will• Spend more than 5 minutes looking something up
• Lose 5 minutes as a result of not knowing something
What SRS is typically used for
• Languages
• Geography
• History
• General knowledge/trivia
• Programming
• (Law)
How I use AnkiImportant personal information:Passport informationCredit Card dataAddresses
LanguagesLanguagesExpressionsPhonetics alphabet
Personal:Motivational/Get me inspiredNames and faces you should knowUplifting quotes people have said about youLessons learned
How I use AnkiBooks:Key takeawaysQuotesConceptsBasics
Geography:World country location, flags and capitalsStates/geographical areasStreets, buildings and train stations in Jakarta (Pretty useful)Singapore MRT map (not every station of course, but the most important)
Math:Multiplication 1-20 (useful)
Which country is this?
How I use AnkiIncremental reading:A book that you really love and want to ”internalize”Great articles
General knowledge:MagazinesPodcastsOtherAcronyms you often face
Getting started
1. Download Anki https://apps.ankiweb.net/(Desktop and android is free, iPhone costs money)
2. Read the Anki user manual https://apps.ankiweb.net/docs/manual.html
3. Read Piotr Wozniak’s 20 rules for formulating knowledge https://www.supermemo.com/en/articles/20rules
4. A good way to get started is with one of the decks in this link https://www.evernote.com/l/AU6msj65nDVMjIb6PLPUqsfPBgg9p7YkKfsI can also send via email if hard to open.
Live demo
• Very personal
Duolingo
Some resources/Further reading
Anki user manual
http://ankisrs.net/docs/manual.html
20 rules for formulating knowledge:
https://www.supermemo.com/en/articles/20rules
Wired - Piotr Wozniak
https://www.wired.com/2008/04/ff-wozniak/
Quantified Self
http://quantifiedself.com/2012/06/spaced-repetition-and-learning/
Teacher uses SRS in classroom
Year 1 http://quantifiedself.com/2012/06/spaced-repetition-and-learning/
Year 2 http://lesswrong.com/r/discussion/lw/nkz/a_second_year_of_spaced_repetition_software_in/
Less wrong - SRS advice
http://lesswrong.com/lw/5n7/srs_advice/
SRS Wikipedia page:
https://en.wikipedia.org/wiki/Spaced_repetition
Interesting article on why understanding is not enough, we also need fluency
(Russian vs math and science)
http://nautil.us/issue/17/big-bangs/how-i-rewired-my-brain-to-become-fluent-in-math-rd
The Guardian article explaining benefits of Spaced Repetition Systems
https://www.theguardian.com/education/2016/jan/23/spaced-repetition-a-hack-to-make-your-brain-store-information
NY Times - Good study habits
http://www.nytimes.com/2010/09/07/health/views/07mind.html
Thank you for your attention!
If you have questions, ideas or just want to talk about spaced repetition please do not hesitate to get in touch
Magnus Ramstad Dahl
Whatsapp: +6582059528