What Is the Best Class Size for Learning? Why Smaller Groups Lead to Greater Academic Success
- Elixir Academy
- Jun 3
- 5 min read

In Singapore’s competitive education landscape, every advantage counts. While syllabus coverage and exam prep often take center stage, there’s one powerful factor many parents overlook: class size.
One factor that often gets overlooked is class size, even though it can make a significant difference in how students learn and grow.
In a place like Singapore, where academic performance is highly valued, understanding why fewer students in a class leads to better outcomes is more important than ever.
Smaller classes don’t just improve grades; they transform the entire learning experience, building confidence, focus, and stronger connections.
Let’s explore why the best class size for learning could be the game-changer you’ve been looking for.
Why Small Class Size Makes a Big Difference

It’s not just a feeling — there’s real evidence that smaller classes create a better learning environment.
When there’s class size reduction, teachers can spend more time managing the classroom effectively, adjusting lessons to fit individual students, and encouraging more active learning.
In smaller classes, there are simply fewer distractions, making it easier for students to stay focused and engaged.
Meanwhile, larger classes often struggle with student behaviour challenges and offer fewer opportunities for meaningful interaction.
Educational research, including the well-known Project STAR study, highlights the academic effects of smaller classes, especially in the early grades and at secondary levels.
From better student achievement and higher test scores to stronger critical thinking skills, the benefits of smaller class settings are clear: fewer students mean more opportunities for every child to succeed.
What Is the Best Class Size for Learning?

If smaller classes offer so many benefits, the next question is — what exactly is the best class size for learning?
Educational research suggests that a class of around 12 to 18 students hits the sweet spot.
This range allows teachers to give individual students the attention they need while keeping classroom discussions lively and engaging.
Unfortunately, public schools often have more students than ideal, stretching class sizes beyond 30, making it harder to create an ideal learning environment.
Existing literature, including studies from the International Journal of Educational Research, consistently shows that class size effects are strongest when student numbers stay low.
At the tuition level, where every session counts, maintaining smaller class sizes ensures a tailored approach to each student's needs, maximising the benefits of small learning groups.
Top 5 Benefits of Small Class Tuition in Singapore

We’ve seen why class size matters — and even what the ideal number of students should be.
Smaller classes not only boost academic achievement but also improve overall student performance.
Now, let’s take a closer look at the real advantages and benefits of smaller classes, and why they make all the difference for student learning.
More Attention, Less Distraction
In smaller classes, there are naturally fewer distractions, making it easier for students to stay focused and attentive.
Teachers can quickly spot when a student’s attention drifts and pull them back into the lesson.
The focal point stays firmly on student learning, allowing classroom activities to be adapted to the needs of individual students without losing momentum.
Smaller class sizes create a setting where student attentiveness naturally improves, creating more opportunities for active participation.
Stronger Academic Performance and Achievement
The link between smaller class sizes and student achievement is well-documented.
Students in smaller groups, especially in the primary grades and secondary levels, grasp concepts faster, retain information longer, and build stronger study habits that support long-term success.
This deeper learning approach leads to consistent academic progress, stronger test scores, and greater confidence when facing new challenges.
For struggling students and shy students, the benefits are even more powerful — helping them grow both their skills and belief in themselves. This is especially impactful for PSLE, O-Level, and IGCSE students.
A Calmer, More Supportive Learning Environment
It’s much easier to create a positive learning environment when the number of students is kept low.
With fewer students, classrooms experience less noise, more order, fewer behavioural disruptions and better student behavior. Students feel safer and more confident to express themselves, ask questions, and participate actively.
This supportive atmosphere gives all students — especially shy students — the space to ask questions, explore ideas, and engage more deeply without fear of being overlooked.
Teachers can maintain stronger classroom management, ensuring that each student stays engaged and on track, leading to better academic and non-cognitive outcomes.
Better Peer Interactions and More Genuine Friendships
In smaller classes, students aren’t just learning from the teacher — they’re learning from each other.
Working in small groups provides more chances for student engagement, encourages critical thinking, and helps build lasting friendships.
With more equitable learning opportunities for everyone, even the quieter voices in the room get heard, fostering a more inclusive and connected classroom culture.
Personalised Support for Every Student’s Learning Style
Every child learns differently, and smaller class sizes give teachers the flexibility to adapt to different learning styles.
Individual students benefit from direct feedback and targeted instruction, which often leads to dramatic improvements in academic engagement and course material mastery.
This personalised attention ensures that struggling students aren’t left behind and that high-achieving students stay challenged and motivated.
Why Class Size Matters Most in Tuition

By now, it’s clear — smaller class sizes offer many benefits.
But here’s where it gets even more important: in tuition centres, where every lesson counts, small groups are the real game-changer.
Unlike public schools with large classrooms, tuition centres aren't held back by large average class sizes or population variation. They can intentionally design the perfect learning environment — fewer students, more focus, and real results.
When class sizes are small, teachers have more freedom to dive deeper into course material, adapt to each student’s learning style, and push critical thinking and analytical skills to the next level.
For high school students, especially, where every mark matters, small classes mean bigger wins — higher academic achievement, better test scores, and stronger academic engagement.
Choosing a centre that values smaller class sizes isn’t just a nice-to-have — it’s the smartest move you can make for your child's future.
And that’s exactly what Elixir Academy does best.
Unlock Big Results with Small Classes at Elixir Academy!

If your child has ever felt lost in a crowded classroom or struggled to get the attention they deserve, you already know why class size matters.
At Elixir Academy, we believe fewer students mean more learning, stronger support, and real academic breakthroughs.
Our intentionally small groups let teachers tailor lessons to individual students, boost active learning, and drive higher academic achievement.
Struggling students get the attention they need, and high achievers are constantly challenged to reach greater heights.
With our proven Exam Keyword System (EKS) and expert-crafted course material, students see faster improvements and real results.
We don't just cover the syllabus — we build confidence, critical thinking, and lasting success.
Give your child the advantage of the best learning environment today.
WhatsApp us to book your Trial Class today — because at Elixir Academy, every student matters!
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