Use the 2357 Method to Remember What You Learn
Many established teaching methods grew out of old research and boring educational theories, so when a new one pops up on social media, it’s worth checking it out—if only to gauge whether a modernized approach can pay dividends. For several months now, a research technique dubbed the “2, 3, 5, 7” method (or usually just “2357”) has been floating around TikTok and Instagram . What’s interesting about this method is that although it is new, it is also a modification of one of the older, time-tested methods. More on that below, as well as what you need to know to use 2357 for your next study session.
What is Test Method 2357?
Using the 2357 technique, you review your notes and study materials over and over again, following a set schedule. Simply put, you review your initial set of notes on day one, review them again on days two and three, and then return to them on days five and seven. Each time you review information, you should identify and expand on the key facts you need to remember. (If you usually take notes by hand, digitizing them may be your first test.)
By the time you finish the final revision on the seventh day, the content should be easily retrievable from your memory with minimal effort.
Why Method 2357 Works
This research method is effective because it combines elements of several proven methods. including spaced repetition, a recognized way to combat the so-called “ forgetting curve ” by increasing the amount of time between study sessions until information reaches your long-term memory. This favorite TikTok hack also uses elements of distributed practice , which works on a similar theory.
Studying through 2357 will work best if you gradually begin to wean yourself off the notes and materials as you go, forcing you to practice active recall as you move into the final days of the cycle. On days five and seven, try blurting out —or writing down—everything you can remember about the topic without referencing any materials—rather than just looking at your notes again.
If you get to day seven and find that you are still having trouble remembering certain aspects of the material, shift your focus to learning only those facts. At this point, you can combine methods—try the Leitner method , which uses flashcards instead of reviewing notes to reinforce key concepts learned through spaced repetition.