Deep Teaching Research

Choosing a school

Original analysis and evidence reviews on choosing a school — written to help UK parents decide for themselves.

Choosing a school Admissions & chances 11+ & entrance exams When to apply Academic results & destinations Preparing your child School life & wellbeing UK education explained Deep Teaching Analysis

Choosing a schoolEditorial direct-answer

Is it worth paying for a smaller class?

Smaller classes produce measurably better results in the earliest school years and for the youngest, poorest or lowest-attaining children. Above about 20 pupils, and above about age 8, the attainment effect fades. Teacher quality dominates.

Evidence: High

2026-08-10 · 6 min read · Deep Teaching Research

← All research