Working memory is the ability to hold and use information for short periods. It plays a central role in reading, math, and classroom learning. When working memory is weak, children often struggle to follow instructions, complete tasks, and retain what they learn.
What working memory is—and what it is not
Working memory is often confused with general memory, but it is a very specific function. It refers to the brain’s ability to temporarily hold information while using it. In simple terms, it is the mental “workspace” we rely on when thinking, learning, and solving problems.
For example, when a child is asked to add 27 + 15 in their head, they must hold the numbers in mind, manipulate them, and keep track of intermediate steps. This is working memory in action.
Unlike long-term memory, which stores information over time, working memory operates in the moment. It is limited in capacity and can easily become overloaded.
Why working memory is essential for learning
Working memory is involved in almost every learning task. It allows children to follow multi-step instructions, keep track of what they are reading, solve problems step by step, remember what the teacher just explained, and connect new information to what they already know.
When working memory is efficient, learning flows more easily. When it is weak, learning becomes slow, effortful, and often inconsistent.
Research has shown that working memory is a strong predictor of academic performance, sometimes even more so than IQ (Alloway & Alloway, 2010).
How working memory affects reading
Reading places heavy demands on working memory. A child must decode words, remember what came before, and make sense of the sentence as a whole.
When working memory is weak, the child may read a sentence but forget the beginning before reaching the end, struggle to understand what they have just read, or lose track of meaning across paragraphs.
This often leads to the impression that the child “can read but does not understand.” In reality, the difficulty lies in holding and integrating information during reading.
How working memory affects math
Working memory is equally important in mathematics. Many math tasks require holding numbers in mind while performing operations.
Children with weak working memory may lose track of steps in calculations, struggle with multi-step problems, forget what they were doing midway through a task, or have difficulty recalling math facts quickly.
This is particularly evident in long division, mental math, and problem-solving, where several pieces of information must be managed simultaneously.
Signs of weak working memory
Children rarely say, “I have difficulty with working memory.” Instead, the problem shows up in everyday behaviors.
Common signs include forgetting instructions shortly after hearing them, needing repeated explanations, losing their place during tasks, making careless mistakes despite understanding the work, and appearing inattentive or distracted.
These children are often described as not trying hard enough, when in fact the task is exceeding their cognitive capacity.
Working memory, attention, and processing speed
Working memory does not operate in isolation. It is closely linked to attention and processing speed.
If attention is inconsistent, information is not encoded properly in the first place. If processing is slow, the information may fade before it can be used. Both situations place additional strain on working memory.
This is why learning difficulties often involve a combination of challenges rather than a single isolated weakness.
Why repetition alone does not solve the problem
It is often assumed that more practice will fix memory difficulties. While repetition is important, it is not sufficient when working memory is weak.
If a child cannot hold information effectively, repeated exposure may not lead to lasting learning. The child may appear to learn during practice but forget shortly afterward.
For learning to become stable, the underlying processes must be efficient enough to support retention.
What helps improve working memory
Supporting working memory requires a structured and thoughtful approach.
Effective strategies include breaking tasks into smaller, manageable steps, reducing unnecessary cognitive load, providing clear and consistent instruction, allowing sufficient repetition to make skills automatic, and strengthening underlying cognitive skills through targeted training.
When working memory improves, children are better able to hold, process, and retain information. As a result, learning becomes more consistent and less frustrating.
Conclusion
Working memory is one of the most important yet often overlooked components of learning. It influences how well children can follow instructions, understand what they read, and solve problems.
When working memory is weak, learning becomes fragile. Information is easily lost, and maintaining progress is difficult.
Understanding the role of working memory shifts the focus from effort to ability. It shows that many learning difficulties are not due to a lack of motivation but to the way information is processed.
When this is addressed, learning begins to hold—and progress becomes possible.
Edublox offers cognitive training and live online tutoring for students with dyslexia, dysgraphia, dyscalculia, and other learning difficulties. We work with families in the United States, Canada, Australia, and around the world. Book a free consultation to discuss your child’s learning needs.
References:
Alloway, T. P., & Alloway, R. G. (2010). Investigating the predictive roles of working memory and IQ in academic attainment. Journal of Experimental Child Psychology, 106(1), 20–29.
Baddeley, A. (2003). Working memory: Looking back and looking forward. Nature Reviews Neuroscience, 4(10), 829–839.
Cowan, N. (2014). Working memory underpins cognitive development, learning, and education. Educational Psychology Review, 26(2), 197–223.
Gathercole, S. E., & Alloway, T. P. (2008). Working memory and learning: A practical guide for teachers. Sage.
Gathercole, S. E., & Pickering, S. J. (2000). Assessment of working memory in six- and seven-year-old children. Journal of Educational Psychology, 92(2), 377–390.
Sweller, J. (1988). Cognitive load during problem solving: Effects on learning. Cognitive Science, 12(2), 257–285.
- What Is Working Memory and Why It Matters for Learning was authored by Sue du Plessis (B.A. Hons Psychology; B.D.), an educational specialist with 30+ years of experience in the learning disabilities field.
- Edublox is proud to be a member of the Institute for the Advancement of Cognitive Education (IACE), an organization dedicated to improving learning through cognitive education and mediated learning approaches.
