Is memorisation good for learning, or is learning by heart an outdated habit that gets in the way of real understanding? The debate has resurfaced online, with some people arguing that memorising facts is pointless when everything can be looked up. Cognitive science suggests the answer is more nuanced, and more encouraging for students.
Memorisation has a poor reputation because many of us remember chanting lists we did not understand. But what you know shapes how well you can think, and the way you memorise matters as much as whether you do it at all.
This guide explains why long-term memory is central to learning, why some memorisation methods work better than others, and how students can make knowledge stick. It ends with practical tips you can use in your next revision session.
Why memory matters for thinking
In a 2006 paper in Educational Psychologist, Paul Kirschner, John Sweller, and Richard Clark argued that long-term memory is central to human cognition. Working memory, the mental space we use to hold and process new information, is very limited in capacity and duration when it deals with unfamiliar material.
Those limits largely disappear when working memory draws on knowledge already stored in long-term memory. Someone who knows their times tables does not need to work out each sum, so they have more mental room to tackle the harder parts of a problem. Ideas about mental effort like this are explored in our piece on hidden cognitive load.
From this perspective, knowing things by heart is not the opposite of understanding. It is often what makes deeper understanding possible.
Is memorisation good for learning, or is rote learning the problem?
The real problem is not memorisation itself but passive repetition. Reading the same page again and again feels familiar, and familiarity is easily mistaken for knowledge. Highlighting and rereading are popular for this reason, yet they do little to help information last.
In a major 2013 review in Psychological Science in the Public Interest, John Dunlosky and colleagues rated 10 common learning techniques. Highlighting and rereading were rated as having low utility. Two techniques stood out as having high utility, because they helped learners of different ages and abilities across many kinds of material.
- Practice testing: Quizzing yourself, using flashcards, or answering practice questions.
- Distributed practice: Spreading study sessions over time rather than cramming them together.
The power of retrieval practice
Retrieval practice means pulling information out of memory rather than putting it in again. In a well-known 2006 study in Psychological Science, Henry Roediger and Jeffrey Karpicke compared students who restudied prose passages with students who took recall tests on them.
On a test five minutes later, restudying did slightly better. But after one week, students who had been tested recalled 56% of the material, compared with 42% for those who had restudied. Repeated studying also made students more confident, even though it led to poorer long-term retention.
This is why testing yourself can feel harder than rereading while actually working better. The effort of recall strengthens memory in a way that passive review does not.
Why spacing beats cramming
Cramming can get you through a test the next morning, but much of that knowledge fades soon after. Spacing out your practice gives you time to forget a little, so each act of recall takes more effort and strengthens memory further.
Spacing pairs well with retrieval. Short quizzes spread across days and weeks are far more effective than one long session the night before. These approaches also fit better with the evidence than popular ideas such as the learning styles myth.
Study tips for learning by heart
Students can put this research to work with a few simple habits:
- Close the book: After reading, write down or say aloud everything you remember, then check what you missed.
- Use flashcards properly: Try to answer before turning the card, and keep reviewing the cards you get wrong.
- Space it out: Revisit material after a day, then a few days, then a week.
- Mix understanding and memory: Learn what a fact means, then practise recalling it.
- Expect effort: If recall feels hard, that is usually a sign it is working.
When memorisation is less useful
Memorisation is not a goal in itself. Learning facts without knowing how they connect can leave students able to repeat information but unable to use it. The aim is to build knowledge that is both secure and meaningful, so it can be applied in new situations.
Memorisation also works best alongside clear teaching. Kirschner, Sweller, and Clark argued that beginners learn more from guided instruction than from being left to discover everything alone, because guidance reduces the load on working memory.
FAQs
- Is memorisation good for learning? Yes, when it builds secure knowledge in long-term memory, which frees working memory for reasoning and problem solving.
- Is rote learning bad? Mindless repetition is less effective than active methods, but memorising key facts is still valuable.
- What is the best way to memorise? Research supports practice testing and spacing study sessions over time.
- Why does rereading feel effective? Rereading creates a sense of familiarity, which can be mistaken for learning even when recall is weak.
Takeaway
Memorisation is not the enemy of understanding. Knowledge held in long-term memory makes thinking easier, and the best way to build it is through retrieval practice and spacing rather than passive rereading. Test yourself, spread out your revision, and connect facts to meaning, and learning by heart can become one of your most useful tools.
