My Very Easy Method Just Speeds Up Naming Planets 

Every Good Boy Deserves Fruit  

HOMES

Can you guess what the above phrases stand for? The first is the planets in our solar system (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and former planet Pluto), the second is the notes on the lines of the musical treble clef, and the last is the Great Lakes in North America. 

From early childhood, we’re taught mnemonics (i.e., memorization techniques that support information recall) as a fun way to remember and recall important information about our world. Sometimes referred to as memory “tricks,” they use the basic principles of learning and memory, such as meaningfulness, organization, association, and attention, to help us organize and recall certain information. 

There are various types of mnemonics: 

• Acronyms: Forming a word from the first letters of the items. For example, DRSABCD is used to remember the essential steps to follow in a medical emergency (Danger, Response, Send for Help, Airway, Breathing, CPR, Defibrillation). 
• Acrostics: Creating a sentence where the first letter of each word represents one in a series of items to remember. For instance, “Richard Of York Gave Battle In Vain” is used to remember the colors of the rainbow. 
• Rhymes and Songs: Memorizing information in a rhyme or tune, like learning the alphabet to the melody of “Twinkle, Twinkle, Little Star”. 
• Chunking: Breaking large bits of information into smaller, manageable groups. For example, many of us chunk our phone numbers and recite them to other people in sections: 123-456-7890.
• Visual Imagery: Using mental images or diagrams to represent concepts or information. To remember which elephants live where, for example, imagine that African elephants have large ears shaped like Africa, while Asian elephants have smaller ears shaped like India.

Mnemonics can be either verbal or visual. Most of the examples above are spoken—aloud or silently—but others are performed physically. Think about a young child learning to distinguish left from right. Often, they are told to hold up their hands with the thumb outstretched so that the left hand creates an “L” shape. 

So what do we use mnemonics for? Most mnemonics work by adding structure or meaning to information that lacks it naturally.¹ Think about the planets. You might be able to name them all without any problem. However, there’s no clear logic or structure to their order, so unless you’re a budding astronomer, it’s probably difficult for you to name them sequentially without some help. Rather than relying on an inherent connection to the material, mnemonics impose an external framework on otherwise disorganized or abstract content. In contrast, content that is already meaningful or well-structured usually doesn’t require mnemonic aids.

Another key characteristic of mnemonics is that they often involve adding something extra to what is being memorized, a process known as ‘elaboration.’¹⁹ These elaborations help by forming associations between new information and what the learner already knows. For example, to remember that mitochondria are the ‘powerhouses’ of cells, we might say that they are “mighty chondria,” alluding to their ability to convert energy. 

Finally, mnemonics help by directing the learner’s focus to important elements of the material, such as key terms, sequences, categories, or relationships between ideas. Aside from the order of the planets, mnemonics can help people remember the steps in a process or the first letters of important concepts (which in turn trigger recall of the words). These aids make the information easier to recall and give the learner a structured way to prioritize information. They also tend to make the learning experience more engaging and enjoyable, which can enhance attention and recall compared to traditional rote memorization. For example, instead of memorizing the abstract order of mathematical operations (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction) through repetition alone, learners use the mnemonic “Please Excuse My Dear Aunt Sally.”

While we have all used mnemonics at some point in our lives, there are people who are experts in this field. Mnemonists are skilled in using mnemonic techniques to memorize and recall large amounts of information, such as lists, numbers, or facts. 

Mnemonist: A person with exceptional memory abilities, often using advanced mnemonic techniques to recall large amounts of information.

Method of Loci: A mnemonic strategy that involves mentally placing items to be remembered along a familiar route or within imagined locations, like rooms in a house. The term loci is Latin for “places.” 

Aphasia: A language disorder caused by brain damage—often stroke or traumatic brain injury—that affects a person’s ability to speak, understand, read, and/or write words and sentences. The severity and type of aphasia depend on the area of the brain affected.

Rote memorization: Learning by repetition without necessarily understanding the meaning. This technique is commonly used to recall facts, lists, or formulas.

Mnemotechnics: Memory aids or strategies (like acronyms, rhymes, or visual imagery) designed to make information easier to remember.

Bloom’s Taxonomy: A framework that classifies learning objectives into levels of complexity, from basic recall of facts to higher-order thinking, like analysis, evaluation, and creation. It’s widely used in education to design curriculum, assess learning outcomes, and encourage deeper understanding.

Memory athlete: An individual trains their memory to a high level and competes in memory competitions, where they are tested on tasks like recalling long strings of numbers, names, or cards in a deck—often using advanced mnemonic techniques.

The word mnemonic is derived from Mnemosyne, the name of the ancient Greek goddess of memory.1 The word “mnemonic” comes from the Greek “mnēmōn,” meaning “mindful” or “remembering,” and actually refers to any method, technique, or system that improves memory. However, when we talk about mnemonics today, we are referring to a specific type of memory aids that help us to remember facts and information. 

Humans have likely used mnemonic-like strategies since prehistory.² Exactly who invented them is unknown, but they’re believed to date back to the Pythagoreans, ancient Egyptians, and even prehistoric times.³ In addition to recording information, mnemonics are also believed to have played a role in storytelling and passing down tales from one generation to another.⁵ 

The first known writing about mnemonics was in 447 BC by the Greek poet Simonides, after which they were known as the Ancient Art of Memory. Following an impressive display of memory recall, he was said to have created the first system of memory aids.  After a building collapsed during a large banquet, the story goes that Simonides remembered the seating position of every single guest, and was therefore able to identify the bodies of the deceased in the aftermath. According to the poet, he had created a space in his mind and filled it with all the people.²

During the Middle Ages, thinkers like Saint Thomas Aquinas discussed mnemonics in their writings and used them as a way to recall Catholic doctrine and different versions of the bible. At this time, memory aids also started to appear in classrooms. It was very common in the 1500s to find younger children using mnemonic aids to learn about grammar and the alphabet. Yet with the arrival of the Reformation (which focused on internal reflection rather than rote memorization) and the later invention of the printing press, the need for mnemonics declined, and they became somewhat obsolete again.⁶ As Elizabeth Einstein notes in her book The Printing Press as an Agent of Change,²¹ during this time of transformation, reading became a more central way to learn. People no longer relied on mnemonics to remember formulas or recipes, because they could now easily refer to written texts.

Although mnemonic techniques and systems have been used by humans for at least 2,500 years, they’ve only been studied experimentally for less than half a century. Although a handful of empirical studies were conducted in the late 1800s and early 1900s, real interest in mnemonics grew in the 1960s, alongside the revival of research on cognitive processes.⁴ In 1966, English historian Frances Amelia Yates published The Art of Memory, a history book which follows the development of mnemonic systems and their relation to the history of philosophy, sciences, and literature.²² This was the first time that the history of mnemonics had been laid out in one place and provided a solid foundation for subsequent empirical research in the area. 

In 1975, Richard Atkinson, a psychology professor at Stanford University, introduced a groundbreaking mnemonic strategy that significantly influenced memory research, particularly in the context of language learning.⁷ He proposed combining acoustic and imagery-based mnemonics to assist students in acquiring Russian vocabulary. The method involved presenting learners with an English word that phonetically resembled the Russian term, and then instructing them to visualize that word interacting with the actual meaning of the Russian word. This dual coding approach, which he called “Mnemotechnics,” not only produced strong learning outcomes but also drew attention to the broader educational potential of mnemonics. Importantly, Atkinson suggested that this strategy could be particularly valuable for students who struggle with language acquisition, paving the way for its application in special education and personalized learning contexts. 

Researchers also started to look at the presence and use of mnemonics in non-Western cultures. Kenneth Higbee, for example, looked at a type of mnemonics called “process mnemonics” in Japan.⁸ These mnemonics are helpful in learning and remembering rules, principles, and procedures, and the processes underlying problem solving. Higbee writes about the Japanese educator Masachika Nakane, who developed a wide range of mnemonics for instruction called “Yodāi,” meaning “the essence of structure.” According to Nakane, the essence of a subject is like a highly compressed textbook, and he claimed to have compressed the essence of trigonometry into a few rhymes that could be read in 60 seconds.⁹

Today, we use mnemonic devices across a vast range of disciplines and areas, including pilot training, gambling, and early childhood education. 

Simonides

Greek lyric poet from the 6th century BCE, often credited with inventing the method of loci, an ancient mnemonic technique based on visualizing information in imagined spatial locations. His association with memory arose from a legend in which he identified banquet guests after a roof collapse, using their seating positions to recall who was present.

Saint Thomas Aquinas

Medieval Catholic philosopher and theologian from Italy whose work integrated Aristotelian philosophy with Christian doctrine. He recognized mnemonics as tools for moral and spiritual improvement, endorsing techniques like visualization and repetition to aid memory as part of intellectual discipline.

Frances Amelia Yates 

British historian best known for her seminal work The Art of Memory (1966), which traced the role of mnemonic systems in Western intellectual history. She illuminated how memory techniques were used by classical orators, Renaissance magicians, and early scientists as frameworks for thought and learning.

Richard Atkinson 

American cognitive psychologist and former president of the University of California research system. In the 1970s, he pioneered research into mnemonic strategies for foreign language learning, especially the keyword method, which links sounds and meanings through mental imagery to aid vocabulary acquisition.

Mnemonics significantly enhance memory and recall by imposing structure on information that might otherwise be difficult to remember. They can be applied to a diverse range of contexts to improve learning outcomes, particularly for those with learning difficulties.

Education and learning

Mnemonics have long been recognized as effective memory aids, and their educational use holds significant promise—especially for learning factual information. However, while students are generally familiar with basic mnemonic techniques like acronyms and imagery, these tools are underused in favor of more familiar study methods like rereading or note-taking. In classroom contexts, mnemonics can help students retain specific terms, lists, or concepts, but are often limited to supporting rote memorization rather than fostering deeper comprehension. 

There’s also some evidence that mnemonics might be able to go beyond simply supporting recall to actually enhancing higher-order learning. In 2003, educational psychologists Russell Carney and Joel Levin conducted two experiments to test whether combining two mnemonic strategies—one for remembering individual facts and another for understanding how those facts relate—could help students learn better.¹² In the first experiment with 59 students, those who used the combined mnemonic method did better than a control group (who used their own preferred method) at identifying different kinds of fish from pictures and remembering their classifications (like order, family, and species). They also performed better on a reasoning task asking them to determine how the fish were related.

The study suggests that mnemonics help students understand deeper relationships between facts by first strengthening their memory of basic information.

Second-language learning 

Mnemonics have also been shown to have a positive impact on learning a second language, a task that can be challenging, especially in adulthood. 

American linguist Andrew Cohen explored how verbal and imagery-based mnemonics can support vocabulary acquisition in second-language learners.¹³ Cohen looked specifically at whether these techniques—especially the keyword method, which links a familiar word to a foreign word through a visual or verbal association—could significantly aid memory and retention. His experiment involved students learning Hebrew vocabulary using either a traditional rote method or mnemonic strategies. To assess the effectiveness of the strategies, the students were tested on their ability to recall the vocabulary both immediately after learning and after a 100-day delay.

The results of Cohen’s study showed that students using mnemonics generally performed better on both immediate and delayed recall tasks, suggesting that creating vivid or meaningful associations between known and new language items can enhance learning. Interestingly, many participants were able to create their own imagery or verbal connections, demonstrating the adaptability of mnemonic strategies even without direct instruction.

Beyond the measurable improvements in vocabulary recall, the study highlighted important individual differences. Learners varied in their ability and willingness to use imagery, and not all types of words were equally suited to mnemonic transformation. Despite this, Cohen concluded that mnemonics should be considered a valuable option in language learning strategies.

Children with learning disabilities 

Children with learning disabilities often struggle with semantic memory, meaning they have difficulty storing, organizing, and retrieving meaningful academic information.¹⁴ This, in turn, can affect their performance in subjects like reading, math, and science. Education specialists Thomas Scruggs and Margo Mastropieri advocate for mnemonic instruction to help these students encode and retrieve academic content by transforming abstract concepts into memorable and visually rich representations.

To support their theory, Scruggs and Mastropieri synthesized the findings of 24 studies to show that students with learning difficulties who received mnemonic instruction significantly outperformed those in traditional classrooms.¹⁵ Beyond recall, mnemonics have also been shown to support comprehension, with students able to apply newly learned vocabulary in unfamiliar contexts. Additionally, mnemonic instruction appears to improve motivation and classroom engagement, as students find the lessons more enjoyable and experience greater success. Although there are challenges in teaching students to generalize these strategies independently, ongoing use by teachers can help foster awareness and eventual self-application of mnemonic tools. 

The main criticisms directed towards mnemonics relate to their application in educational settings and how they may actually undermine deeper learning processes. Overreliance on these educational supports, while offering quick results, may have negative long-term effects on student learning outcomes. 

Recall is not understanding 

One of the criticisms of using mnemonics, particularly in educational contexts, is that there is a critical distinction between what is remembered and recalled, and what is understood. Researchers from the Universities of Florida and Texas surveyed over 1300 introductory statistics students and found that while they frequently remembered acronym mnemonics related to key concepts, processes, and definitions related to their course, these were not always well understood or correctly applied.¹⁶ This finding fits into the ongoing debate in educational theory: while mnemonics aid memory, they may encourage surface-level recall without deeper comprehension, especially when introduced without adequate scaffolding or opportunities for application.

The study also challenges the common assumption—rooted in Bloom’s Taxonomy—that memorization sits at the “lowest” level of cognitive learning and is therefore less valuable. Bloom’s Taxonomy is a hierarchical framework used to classify educational learning objectives according to levels of complexity and depth. It progresses from basic recall of facts (remember) to higher-order thinking and problem-solving (create). So while memorization is often viewed as rote and superficial, it can actually provide a critical foundation for deeper learning. For example, a student who has memorized key math formulas can more easily focus on solving complex problems, because they’re not struggling to recall basic building blocks. 

While critics argue that reliance on memory tricks can hinder critical thinking and are the “great enemy of educationalists,”¹⁷ the researchers present evidence that mnemonics can act as cognitive bridges, especially when paired with instructional strategies that connect them to problem-solving. Still, they caution against assuming that students will naturally move from remembering to applying mnemonics; many participants in the study recalled aids without being able to explain or use them effectively. Overall, however, the study highlights the problem with the assumption that memorization automatically leads to mastery.

In another study, this one looking critically at the use of mnemonic devices in math education, educators Christy Graybeal and Tricia Strickland found that overreliance on these aids can result in the prioritization of procedural fluency over conceptual understanding.¹⁸ In other words, students may learn how to follow steps without truly understanding why those steps work. This imbalance can limit students’ ability to adapt their knowledge to new or complex problems. They also caution against using mnemonic devices to oversimplify what are inherently complex concepts. For example, the mnemonic FANBOYS is commonly used to teach English coordinating conjunctions, but it includes “for,” “yet,” and “so,” which aren't strictly considered true coordinating conjunctions. 

The method of loci 

Rather than spending hours on the running track or swimming lengths of a pool, “memory athletes” relentlessly train their brains to recall unimaginable amounts of information. Many of them come together for the annual World Memory Championships, which puts talented athletes through their paces in 10 disciplines, including 30-minute binary numbers and 15-minute lists of random words.²³ 

So how do they do it, and how can your “average” person become a memory athlete? 

A study conducted by a large team of researchers from several universities across the world examined the memorization techniques of 23 of these memory athletes who had ranked in the top 50 of the World Memory Championships.¹⁰ These athletes attributed their exceptional memory skills to a mnemonic system known as the “method of loci.” This technique involves associating each item to be memorized with a visual image of a landmark along a familiar route, such as a walk to the grocery store. In baseline testing, these athletes were able to recall an average of nearly 71 out of 72 words after 20 minutes, whereas non-athletes recalled about 40 on average. 

To assess the effectiveness of this method among individuals without prior memory training, the researchers divided non-athlete participants into three groups. One group received six weeks of training in the method of loci, another was trained in a technique aimed at improving working memory, and the third received no training. The group trained in the method of loci showed significant improvement in memory performance, approaching the levels of the memory athletes. This study suggests that with proper training, the method of loci can substantially enhance memory capabilities, even in individuals without innate memory skills. 

Mnemonics for stroke recovery

Stroke is a medical condition that occurs when blood flow to part of the brain is interrupted or reduced, depriving brain tissue of oxygen and nutrients.¹¹ This can lead to a variety of impairments, including difficulties with language and memory. One such impairment is aphasia, a condition that affects the ability to communicate.

Researchers have explored how song-based mnemonics might assist verbal learning and aid recovery. In a study by scientists in Finland, 31 stroke patients were recruited six months after their stroke to test whether hearing stories in a sung versus spoken format improved their ability to recall verbal information. The researchers were especially interested in how this method might benefit those with aphasia.

The results revealed a striking difference between patients with and without aphasia. Non-aphasic patients demonstrated more stable memory when stories were sung rather than spoken. They had better recall of the middle parts of the story, indicating a reduced serial position effect. Aphasic patients, however, showed improved memory specifically for the final parts of the sung stories (a stronger recency effect) and were able to recall longer, more coherent word chunks. 

When the researchers conducted brain imaging on the patients, they found that for aphasic patients, better performance on sung tasks was associated with increased gray matter volume in several regions involved in language and auditory processing. Overall, the findings suggest that singing may facilitate memory recall through rhythmic structure and emotional prosody, especially in people with language impairments following stroke. So next time you’re struggling to remember some important information, why not set the words to your favorite tune? (Just be careful about singing out loud.)

Why do we remember information that we attach significance to better than information we repeat?

The levels of processing effect is a psychological concept suggesting that the depth at which information is processed influences how well it is remembered. This article looks at how shallow encoding methods, like repetition, are less effective for long-term memory retention compared to deeper processing techniques, such as associating new information with existing knowledge or personal experiences to enhance memory.

Constructive Memory

Our brains actively reconstruct past experiences each time we recall them, rather than retrieving exact replicas. This reconstruction is influenced by factors such as prior knowledge, emotions, and external information. This article explores the significant implications of constructive memory across various fields, including education, therapy, and legal systems.

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