The goal is not simply to make a chapter look familiar, but to help children retrieve the information later.
28 Sept 2026 | 08:18 Research on learning has repeatedly found that some of the techniques students rely on most, including rereading and highlighting, are less effective for long-term retention than methods that make the brain actively retrieve information. A major review of 10 common learning techniques , published in the Psychological Science in the Public Interest, found that practice testing and distributed practice had the strongest evidence of effectiveness . That does not mean a 15-minute routine can make an entire textbook chapter permanently stick in one sitting. But a focused 15 minutes can be used to turn passive reading into active learning. For example, a 20-page science chapter could be split into: definition and introduction first concept examples second concept diagrams or processes summary Spend a few minutes understanding one section before moving to the next. So instead of spending all 15 minutes looking at the chapter, spend part of that time looking away from it . A 2026 meta-analysis of 56 studies examining visual materials in classroom teaching found an overall positive effect, particularly when visuals were clearly connected to the explanation and when unnecessary visual details were avoided. Research has also examined ondoku as a teaching activity; for example, a 2021 practitioner research study involving 59 Japanese elementary-school students investigated computer-mediated ondoku practice for pronunciation.
Instead of telling yourself, “I have to remember this entire chapter,” divide it into manageable pieces. A 2006 review by Henry Roediger and Jeffrey Karpicke described the “testing effect”: being tested on information can improve later retention more than simply studying the material again. But it is worth avoiding the exaggerated claim that simply “seeing and hearing something stores it in two places in the brain”.
You read the same chapter twice. Then three times. You underline half the page, highlight a few definitions and still, when you close the book, the details seem to disappear. It is a familiar problem for students: the more they reread, the more familiar the chapter feels – but familiarity is not necessarily the same as remembering it. Memory needs repeated exposure and, ideally, spaced revision. One viral study routine describes this as a five-step, Japanese-inspired method. Breaking a long chapter into smaller sections can make studying feel more manageable for children. This is not a magic Japanese memory technique, but breaking information into meaningful chunks is consistent with what researchers know about learning and cognitive load . Recent research on the use of visuals in teaching also found that meaningful segmentation of content can matter when students are trying to understand and retain information. The important point is not to divide a chapter randomly. Each section should have a clear idea or question attached to it. For example, instead of reading three pages on photosynthesis, ask: What is photosynthesis? Where does it happen? What does the plant need? What does it produce? That immediately gives your brain something to look for. Reading key points aloud can add another way for children to engage with what they are studying. This is the step with some of the strongest evidence behind it. Read a section for a few minutes. Then close the book . Without looking, ask yourself: What were the three main points? Can I explain the process? What example did the author give? What terms do I remember? Do not worry if you cannot remember everything. The struggle to retrieve the information is the point. This is known as retrieval practice , and it has been extensively studied. A later review in the Annual Review of Psychology concluded that practising retrieval shortly after learning can slow forgetting and that the benefit appears across different types of material and learners. That may feel less comfortable. It is also the point. Drawing a diagram or creating a mental picture can help children connect and organise information. Some information becomes easier to remember when you attach it to a diagram, image, sequence or simple mental story. If you are studying the water cycle, for instance, picture water moving from the sea to the clouds, falling as rain and returning through rivers. If you are studying a historical event, create a simple mental timeline. If you are learning a biological process, draw it using arrows. This idea is sometimes called dual coding – combining words with meaningful visual representations. The evidence is more nuanced. So the trick is not to decorate your notes with colourful pictures. Make the visual carry information. A simple flowchart explaining a process is likely to be more useful than a page filled with unrelated doodles. Asking children to explain a lesson in their own words can reveal what they understand and where they need help. Reading aloud – ondoku in Japanese – is a genuine Japanese practice, particularly in language and reading education. But there is an important distinction.
In a classic 1989 study, Michelene Chi and colleagues examined how students explained worked examples while learning. Self-explanation is not as strongly supported as practice testing and distributed practice overall, but the 2013 review by Dunlosky and colleagues rated it as a promising technique with moderate utility. Minutes 4–6: Understand and visualiseRead one section and turn important processes or relationships into a simple diagram, sequence or mental image. Minutes 7–9: Close the book and recallWrite or say everything you can remember without looking. Minutes 10–12: Check and read key points aloudOpen the book, identify gaps and read only the important information aloud. Minutes 13–15: Teach it backClose the book again and explain the chapter in your own words. So after your first 15-minute session, revisit the material the next day.
The original viral routine can therefore be made more evidence-based: Minutes 1–3: Break it downDivide the chapter into meaningful sections and identify the key questions.
And there is one step missing from most “remember a chapter in 15 minutes” hacks: come back to it later. That small shift – from “Let me read this again” to “Let me see what I can remember without looking” – is where a study session can become much more effective. Students who generated more meaningful explanations showed better understanding of the principles behind the examples. Try to recall it again without looking. Then return to it after a few days. The goal is not to make the chapter look familiar. It is to make your brain retrieve it when the book is no longer in front of you. You use AI every day. Now get your AI Quotient. Take the AIQ test Get the latest Lifestyle News and more. Download the TOI app.
Because you are seeing and hearing it, there is not enough evidence to claim that reading a textbook chapter aloud automatically makes you remember it better simply. Because you have actively processed it, the second version is easier to retrieve.
For example, instead of repeatedly reading, “Mitochondria are membrane-bound organelles responsible for producing cellular energy,” say: “Mitochondria are the parts of a cell that help produce energy. “Basically, this chapter is about…” Then explain the main idea, the important terms and the connection between them. Reading aloud can nevertheless be useful as an additional active step. When you explain or read an important point aloud, you have to process the sentence rather than merely letting your eyes move across it. Try reading only the most important definitions, formulas, dates or conclusions aloud. Even better, turn the sentence into your own words. Spaced revision can help children retain what they learn better than relying on a single long study session. This may be the most revealing final test. Imagine that a friend has missed the class and asks you to explain the chapter. Put the book away and start talking. If you get stuck, do not immediately reread the entire chapter. Look up only the part you could not explain , then close the book and try again. This resembles the learning technique known as self-explanation .
