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The Role of Small Class Sizes in Academic Success: Why Prime School Leads the Way

May 13, 2025 by
The Role of Small Class Sizes in Academic Success: Why Prime School Leads the Way
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Introduction

When it comes to education, one of the most impactful factors on a student’s performance is class size. Research consistently shows that small class sizes in schools are linked to better academic outcomes, greater student engagement, and more personalised instruction. At Prime School International, small class sizes are a central part of the educational philosophy, helping students thrive both academically and personally.

In this article, we explore why private schools with small classes, like Prime School, offer a distinct advantage for families seeking a world-class education in Portugal.

1. What Are the Benefits of Small Class Sizes?

Small class sizes allow for:

  • Individual Attention: Teachers can closely monitor each student’s progress and tailor their approach.
  • Greater Participation: Students are more likely to ask questions, engage in discussions, and build confidence.
  • Faster Identification of Challenges: Learning gaps and challenges are spotted early and addressed promptly.
  • Stronger Student-Teacher Relationships: These foster a safe, trusting environment that enhances learning.
  • Improved Behaviour and Focus: With fewer students, there are fewer distractions and more time on task.

2. Prime School’s Approach to Small Class Sizes

At Prime School International, class sizes are deliberately capped to ensure a quality learning environment.

  • Approximately 18 students per class - or fewer.
  • Usually even smaller groups in most of A/AS Levels and BTEC programmes, due to the wide range of subject choices. *This doesn't apply to some subjects, such as maths and biology, as these tend have a slightly higher number of interested students.

This structure allows educators to deliver a personalised learning experience, adapt teaching methods, and provide timely support. For students preparing for critical exams like the IGCSEs, A Levels, and BTEC qualifications, this level of attention is a major advantage. 

3. How Small Classes Improve Learning Outcomes

Numerous academic studies and educational experts point to the powerful impact of small class sizes. Here's how they improve outcomes:

  • Higher Achievement Levels: Students in small classes often outperform their peers in larger classes in core subjects.
  • Enhanced Critical Thinking: With more time per student, teachers can foster higher-order thinking and problem-solving skills.
  • Greater Academic Confidence: Students become active participants in their own learning.
  • Preparation for University: Small class environments mimic university seminars, helping students transition more smoothly.

At Prime School, these benefits contribute to strong academic performance and student readiness for further education.

Conclusion

Choosing a school with small class sizes can be one of the best investments you make in your child’s future. Prime School International ensures that each student receives the individualised attention and academic support needed to excel in today’s competitive global environment.

If you’re looking for private schools with small classes in Lisbon, Cascais or Sintra, Prime School provides not only maximum class sizes of 18, but also a world-class curriculum, bilingual pathways, vocational options, and elite athlete support.

To learn more about Prime School, contact us on the link below.

Enquire today

FAQs

1. How small are the class sizes at Prime School?

Classes are capped at 18 students, with smaller groups for A Levels and BTEC due to the range of subjects. There are 1 or 2 rare cases of classes with 20 students. 

2. Why do Maths and Biology classes sometimes have more students?

These are core subjects that are widely taken by most students, leading to slightly higher numbers.

3. How does a small class size benefit my child?

It enables personalised learning, faster problem resolution, and greater student engagement.

4. Is Prime School a private school with small class sizes in Lisbon?

Yes. Prime School has campuses in Lisbon/Alvalade, Sintra, and Estoril, all maintaining small class sizes.

5. Are small classes available at all levels of education?

Yes. From Preschool to Advanced Levels, Prime School maintains small classes to support every student’s success.

Enquire today


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