Does Class Size Matter? What Helps Children Thrive at School
Class size is one of the first things parents compare when choosing a school. Smaller classes can seem an obvious advantage – fewer children, more attention, more support. But the reality is more nuanced.
Emma Beer, Deputy Head of Teaching and Learning at Lady Barn House School,
shares her thoughts on why class size cannot be judged by numbers alone.
When families ask about class size, what they are often really asking is: will my child be known?
The question is not simply whether a class is small or large, but whether it creates the right environment for children to feel both known as individuals and part of a thriving community.
Research suggests the biggest benefits come from reducing very large classes, rather than continually making already small classes smaller. There comes a point where reducing numbers further brings fewer additional gains and can even limit aspects of the pupil experience.
Children often thrive in classrooms that are small enough for teachers to know them well, but large enough to create energy, discussion and connection.
A balanced class allows:
- teachers to understand each child as an individual
- children to hear a range of perspectives
- discussion to feel lively and engaging
- friendships and social confidence to develop naturally
Many independent schools aim for this middle ground, often with class sizes in the high teens or low twenties.
Children also learn from one another, not just from their teacher. A classroom with a mix of personalities and ideas encourages pupils to question, explain and build confidence in expressing themselves. In very small groups, this dynamic can sometimes become narrower.
Class size also influences social development. A healthy-sized cohort gives children the opportunity to form a wider range of friendships and build relationships with different types of people. Smaller groups can sometimes create more intense friendship dynamics simply because there are fewer social options.
Beyond the classroom, cohort size can shape the wider school experience too. Sports teams, productions, clubs and leadership opportunities all rely on having enough children to create a rich and varied programme. These experiences are often where children discover interests, develop resilience and gain confidence.
Ultimately, the goal is not the smallest class possible, but the right environment for children to flourish – where they feel known and part of something bigger than themselves.
