As parents, you want to help your child succeed — especially when it comes to preparing for scholarship or Selective School entry exams. But did you know that understanding how your child’s brain processes and stores information can make your support even more effective?
One key concept is working memory. This is where all real-time thinking and mental processing happen. It’s the place where your child combines new information (like what they have learnt in today’s lesson) with what they already know (from past lessons), and uses both to solve problems or answer questions.
However, working memory has a limited capacity — research suggests most people can only juggle about four pieces of new information at once (Cowan, 2010). If we overload it, information can be lost or confused, making it harder to learn or recall under exam pressure.
Why working memory matters for exam preparation
Research shows that it’s not the number of times we see a fact that helps us remember it — it’s how deeply we process it. For example, a classic study found that students remembered words much better when they thought about meaning (like “Is a lion a mammal?”) rather than surface details (like “Is this word uppercase?”) (Craik & Tulving, 1975).
We can see this in action with Nick, a Year 5 student preparing for the Year 7 entry scholarship exams. Nick has already learned the concept of fractions and understands that a fraction represents “a part of a whole.” During practice, he encounters this question:
“Lisa used 3/8 of her pocket money on food and 2/8 on drinks. She decided to save the rest, which is $15. How much pocket money does Lisa have?”
If Nick relies only on surface-level recall of the word “fraction,” he may struggle. But when he engages in deeper processing—thinking about how to apply the fraction concept to the problem—he realises that Lisa has spent five eighths and saved three eighths, which equals $15.
By connecting his understanding of fractions to the specific details in the question, Nick can figure out one eighths here means 5 dollars, so total is $40.
This shows that meaningful learning — not just repetition — is the key to strong memory and recall.
Four stages of learning: from knowing to mastering
Effective exam preparation moves through four key stages:
- Knowing → Recognising a concept or fact for the first time.
- Understanding → Connecting the new concept to things they already know.
- Using → Practising the concept in various situations.
- Mastering → Applying it easily and automatically, even under pressure.
As students progress, the load on working memory reduces, freeing up brainpower to tackle more complex tasks (The Education Hub, n.d.).
How Excel Withus Education helps expand working memory
At Excel Withus Education, our programs support and strengthen students’ working memory at every stage of learning. Here’s how we do it:
1. Building a strong foundation in maths and English
Our topic based English and Math classes focus on deep understanding of core skills, not just surface knowledge. This ensures students have the background they need to build more advanced learning on top.
2. Weekly trial test sessions
Our regular practice under exam conditions helps students get used to time limits and question types, reducing anxiety and improving automatic recall during real exams.
3. Regular review with application questions
We frequently review previous topics using different types of application questions. This strengthens long-term memory, reduces procedural mistakes, and ensures students can confidently apply knowledge in new situations.
How parents can support exam preparation at home
Here are three practical ways you can help your child strengthen learning and working memory:
Encourage consistent, regular effort — small, steady practice daily is better than cramming at one time.
Focus on foundational skills — make sure they are confident with the basics before moving on.
Provide emotional support — help them feel safe and calm, and remind them that mistakes are part of learning.
Final thoughts
When students combine meaningful learning, repeated practice, and emotional support, they are much better prepared for exams. At Excel Withus Education, we are committed to helping your child not only succeed in their tests but also develop the thinking and learning skills they will use for life.
References
Craik, F. I. M., & Tulving, E. (1975). Depth of processing and the retention of words in episodic memory. Journal of Experimental Psychology: General, 104(3), 268–294. https://doi.org/10.1037/0096-3445.104.3.268
Cowan, N. (2010). The magical mystery four: How is working memory capacity limited, and why? Current Directions in Psychological Science, 19(1), 51–57. https://doi.org/10.1177/0963721409359277
The Education Hub. (n.d.). Working memory and its role in teaching and learning. https://theeducationhub.org.nz/working-memory-and-its-role-in-teaching-and-learning/