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Ebbinghaus forgetting curve tells us that the law of forgetting is fast first and then slow, especially within 48 hours after memory, the forgetting rate is as high as 72%, so we can't think that reviewing every few hours and every few days is the same thing, so we should review it in time, and the interval is generally no more than 2 days. Repetition can keep what needs to be remembered firmly in the brain.

According to Ebbinghaus's forgetting curve and human time, we fully realize that memorizing materials 9 hours after memory can quickly restore memory. At this time, you may be able to remember what you have learned in 10 minutes, but if you wait until 10 days later, you may not be able to achieve this effect by spending 1 hour reviewing. Instead of "thankless" in the future, it is better to review within 9 hours after reciting, which not only saves review time, but also achieves a good memory effect.

Extended data

How to organize review effectively;

First, review should be timely. The most serious moment of forgetting is the initial time after memorizing, so it is very important to review in time, which can re-strengthen the memory traces that are about to disappear, become clear, and let the learned knowledge be continuously integrated into the knowledge system. In this way, strike while the iron is hot, before a lot of memory materials are forgotten. Otherwise, after a long time, a lot of memory materials have been forgotten, and then restoring them is almost equivalent to starting over.

Second, the monotonous review method is easy to make people bored, and it is easy to make people bored and bored. Diversified review can make people feel novel, promote the organic connection of all aspects and improve the memory effect. We should be good at understanding and retelling the same content from different angles and using different analytical methods, and mobilize the participation of multiple senses as much as possible. For example, the review of the same word can be done by dictation, filling in the blanks, analyzing glyphs, making sentences, writing synonyms and antonyms. And you can read and write while reciting something.

In addition, the method of trying to recall can also be used to remember, because the purpose and task of trying to recall are more specific, which can enhance the excitement of cerebral cortex attention and leave a deep trace, and can find the difficulties of attaching importance to materials in time and concentrate on solving them. The experiment of psychologist Gates shows that; When 20% of the time is spent on reading and 80% on memory, the memory effect is the best.

Third, arrange and allocate the review time reasonably. This mainly means that, under normal circumstances, the effect of decentralized review (dividing the review into several times with a certain time interval) will be better than that of centralized review (materials that are reviewed continuously in a period of time). This is because centralized review is easy to inhibit the accumulation of cranial nerves, while decentralized review is easy to eliminate inhibition and consolidate.

Fourth, the review content is systematic. Review should pay attention to sorting and classifying according to the content of each part and the relationship between old and new knowledge, so as to make it systematic. By sorting out, the content of the review is compact, the thinking is clear, and it is more convenient to remember, otherwise it will be chaotic and interfere with each other, and the memory effect will be greatly reduced.

References:

Baidu Encyclopedia-Forgetting Curve