Best Class Size for Learning: 7 Ways Smaller Groups Improve Student Outcomes

Ask any parent or teacher what makes a classroom effective, and you’ll likely hear about a passionate teacher, strong curriculum, or engaged students.

But there’s another powerful factor that often goes unnoticed: class size. So, what is best class size for learning?

According to educational research and countless classroom observations, smaller class sizes consistently deliver better student outcomes—especially in the early grades.

In this article, we’ll explore the many benefits of small class sizes and why they matter more than ever.

We’ll also look at how the right learning environment can make a significant difference in student achievement and success.

Why Class Size Matters in Education

Class size has long been a focal point in educational psychology, public interest debates, and international journal discussions.

At its core, class size refers to the number of students assigned to one teacher in a classroom.

Whether in primary grades or high school, the number of students impacts everything from how teachers manage classroom activities to how students receive instruction and support.

While larger classes might seem efficient, the advantages of small class size become clear when you compare outcomes: improved student engagement, academic performance, and emotional support.

1. More Individualised Attention for Each Student

In a small class setting, teachers can work closely with individual students, adjusting lessons to suit different learning styles.

This personalised support enables students to grasp course material at their own pace, ask more questions, and receive timely feedback.

Individualized attention also strengthens academic achievement, as teachers can better identify gaps in understanding and tailor lessons accordingly.

2. Enhanced Student Engagement and Participation

Smaller classes naturally encourage more active learning. Students in small groups are more likely to speak up, collaborate with peers, and participate in classroom activities.

This level of engagement enhances critical thinking and analytical skills—key for both primary and high school students.

With fewer students, there’s also a stronger sense of accountability and involvement, which boosts student performance and motivation.

3. Improved Student Behavior and Classroom Management

One of the less-discussed but equally important benefits of small class sizes is better student behavior.

In a learning environment with fewer distractions and more structure, students are more likely to stay on task and follow rules.

Teachers in smaller classrooms can detect and address behavioral issues more quickly, leading to a more positive and respectful atmosphere for all.

4. Better Academic Performance and Outcomes

Class size research consistently shows that class size reduction has a measurable impact on student success, especially in the early grades.

Students in smaller classes score higher on assessments, retain information better, and develop stronger foundational skills.

Academic engagement in small classes is typically more sustained, which contributes to improved student outcomes over time.

The impact is particularly strong in subjects like English, where comprehension and discussion are key.

5. Stronger Teacher-Student Relationships

With fewer students to manage, teachers can build more meaningful connections with each learner.

This not only enhances emotional support but also allows educators to become mentors who guide students both academically and personally.

Stronger relationships also create a sense of trust, making it easier for students to express their concerns, ask questions, and seek help—crucial elements in any student’s learning experience.

6. Greater Flexibility in Teaching and Learning

Small class sizes allow for more creative and adaptive teaching methods.

Whether it’s project-based learning, peer discussion, or individualised assignments, teachers have more freedom to experiment and cater to student needs.

This flexibility supports different learning styles, ensuring that no student is left behind.

It also provides more opportunities for enrichment, extension work, or targeted support when needed.

7. Increased Confidence and Social Development

Students in smaller classes often experience a boost in self-confidence.

With more opportunities to speak, contribute, and be heard, even the quieter learners come out of their shell.

In addition, small group classes benefits for students include closer peer relationships and lasting friendships.

The tight-knit environment encourages collaboration and respect—important skills both in school and beyond.

The Ideal Class Size: What Does the Research Say?

Educational research has shown time and again that small class sizes have a positive and lasting impact on student outcomes.

The renowned Tennessee STAR (Student/Teacher Achievement Ratio) study found that students in smaller classes—typically ranging from 13 to 17 students—achieved significantly higher academic performance.

This effect was especially notable in the early grades compared to students in larger classes.

A more recent meta-analysis published in the Review of Educational Research supported these findings.

It revealed that class sizes below 15 were linked to better student engagement, higher test scores, and improved behaviour—especially when reductions were made early and maintained over several years.

Some education experts and practitioners advocate for even smaller group sizes of 2 to 8 students, particularly in supplementary or specialised learning environments.

These ultra-small groups allow for personalised instruction, more interaction, and flexible pacing—all leading to stronger academic performance and better outcomes.

While optimal class size can vary based on context, subject, and student demographics, there is a clear consensus.

Educational psychology and international school studies consistently show that smaller classes offer benefits large classrooms often can’t match.

Small vs Large Class Sizes: A Quick Comparison

Why Small Class Sizes Matter—Especially in Tuition

For tuition centres, small class sizes aren’t just a preference—they’re a strategy.

Small group classes combine expert instruction with the proven advantages of a more focused learning environment.

Students benefit from more support, personalised feedback, and a warm, inclusive atmosphere that adapts to their unique needs.

Whether it’s exam preparation, mastering key concepts, or building confidence in language skills, a small class setting helps students thrive.

This approach not only provides the opportunity to answer questions more effectively but also ensures that no student is left behind in their educational journey.

The Power of Small Groups: Big Results at Learning Journey Education Centre

At Learning Journey Education Centre, small class sizes aren’t a feature—they’re the core strategy behind our students’ success.

Our English tuition classes are intentionally kept small, with only 2 to 8 students per class, allowing our dedicated teachers to provide personalised coaching tailored to each student’s needs.

This structure allows our English tutors to:

• Provide targeted feedback regularly

• Address learning gaps quickly

• Tailor lessons to each student’s strengths and challenges

Whether it’s mastering grammar, improving comprehension, or preparing for exams like PSLE or O-Levels, our small-group model ensures your child stays ahead.

Our approach aligns with world-class teaching practices, providing the kind of environment that school leaders advocate for when considering the best ways to foster student success.

But it’s more than just academics.

In our small, tight-knit classes, students gain confidence, build meaningful relationships with their teachers, and feel genuinely supported every step of the way.

We don’t just help students pass. We help them thrive.

Want your child to experience the difference a small class can make? Get in touch today to explore our programmes and give your child the learning advantage they deserve.